miky6794 miky6794

30-10-2021
Mathematics

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First, rewrite the expression by combining like terms. 21r – 7 – 9r – 8 - 2r=

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devishri1977 devishri1977

30-10-2021

Answer:

Step-by-step explanation:

Combine like terms.Like terms have same variable with same power.

21r - 7 -9r - 8 - 2r = 21r - 9r - 2r - 7 - 8

= 10r - 15

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