Exercise 29

Simplify each expression, if possible, by combining like terms.

  1. \({4z - {\frac{5}{8}}s}\)

  2. \({{\frac{9}{5}}y - {\frac{2}{3}}y}\)

  3. \({{\frac{3}{4}}y-9y+y}\)

  4. \({{\frac{4}{7}}y+z^{2}-z - {\frac{5}{2}}z^{2}}\)

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