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Which expressions is equivalent to -3z+17-(-15z)-(-4)​
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17 votes
Which expressions is equivalent to -3z+17-(-15z)-(-4)​

User Sahil Arora
by
4.6k points

2 Answers

14 votes

Answer:

The answer is 12z + 21

User York
by
5.0k points
8 votes
-3z + 17 + 15z + 4

Combine like terms.

12z + 21 is a similar expression.


Proof:

z = 2

-3(2) + 17 + 15(2) + 4

-6 + 17 + 30 + 4 = 45


12(2) + 21

24 + 21 = 45
User CptDayDreamer
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