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17

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4r}{r+2}+\frac{8}{r+2}} =}\)

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18

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{6r}{r+6}+\frac{36}{r+6}} =}\)

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19

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{3t}{t+5}+\frac{15}{t+5}} =}\)

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20

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{6t}{t+3}+\frac{18}{t+3}} =}\)

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21

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{1}{x^{2}-x-30}-\frac{x-5}{x^{2}-x-30}} =}\)

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22

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{6}{x^{2}-12x+20}-\frac{x-4}{x^{2}-12x+20}} =}\)

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23

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4}{x^{2}-25}-\frac{x-1}{x^{2}-25}} =}\)

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24

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{5}{y^{2}-8y+7}-\frac{y-2}{y^{2}-8y+7}} =}\)

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25

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4y}{5}+\frac{y}{30}} =}\)

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26

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{5r}{6}+\frac{r}{18}} =}\)

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27

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{6}{r+2}-\frac{5}{r+4}} =}\)

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28

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{5}{t-5}-\frac{2}{t-4}} =}\)

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29

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{3}{t-1}-\frac{2}{t+5}} =}\)

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30

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{5}{x+6}-\frac{2}{x+2}} =}\)

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31

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{1}{x+2}+\frac{4}{x^{2}-4}} =}\)

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32

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{1}{x+3}+\frac{6}{x^{2}-9}} =}\)

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33

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{1}{y-1}-\frac{2}{y^{2}-1}} =}\)

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34

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{1}{y-3}-\frac{6}{y^{2}-9}} =}\)

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35

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{5}{r+2}-\frac{10r}{r^{2}-4}} =}\)

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36

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4}{r-3}-\frac{8r}{r^{2}-9}} =}\)

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37

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{5}{t+5}-\frac{10t}{t^{2}-25}} =}\)

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38

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4}{t-2}-\frac{8t}{t^{2}-4}} =}\)

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39

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{x}{x+2}-\frac{6x+16}{x^{2}+2x}} =}\)

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40

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{x}{x+2}-\frac{4x+12}{x^{2}+2x}} =}\)

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41

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{x}{x-2}-\frac{3x-2}{x^{2}-2x}} =}\)

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42

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{y}{y-9}-\frac{15y-54}{y^{2}-9y}} =}\)

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43

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{6}{y^{2}-9}+\frac{3}{y+3}-\frac{1}{y-3}} =}\)

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44

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{6}{r^{2}-1}+\frac{5}{r+1}-\frac{3}{r-1}} =}\)

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45

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4r}{r^{2}-7r+12}+\frac{4r}{r-3}} =}\)

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46

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{-\frac{3t}{t^{2}-5t+6}-\frac{3t}{t-2}} =}\)

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47

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4t}{t^{2}-11t+30}+\frac{4t}{t-5}} =}\)

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48

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{-\frac{3x}{x^{2}+5x+6}-\frac{3x}{x+3}} =}\)

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49

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{x^{2}-5}{x^{2}+5x}-\frac{x-1}{x}} =}\)

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50

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{x^{2}+15}{x^{2}-3x}-\frac{x-5}{x}} =}\)

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51

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{3}{y+5}+4} =}\)

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52

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{-\frac{5}{y+1}-4} =}\)

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53

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{4r}{r+2}+\frac{r}{r-2}-5} =}\)

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54

Add or subtract the rational expressions to a single rational expression and then simplify. If applicable, state the restricted domain.

\(\displaystyle{{\frac{6r}{r+1}+\frac{r}{r-1}-7} =}\)