Exercise 25

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

  1. \({-5z-79z-76-99z}\)

  2. \({-79x-51t-53s}\)

  3. \({-89x-44x-16z}\)

  4. \({22x+38x^{2}+50x^{2}+90}\)

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