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-2x + 8y + (- 21x) - 8y

User Tomexx
by
5.9k points

2 Answers

2 votes

Answer:

The person above me is correct. The answer is -23x

Explanation:

you would subtract the 8y from 8y

Then add -21x to -2x to get -23x

User Bastelflp
by
7.2k points
4 votes

Answer:

-23x

Explanation:

-8y and +8y cancel, making +0.

-2x and +(-21x) simplify down to -2x -21x, and then even further down to -23x.

-23x and +0 make -23x.

User Tomasz Grobelny
by
7.1k points