If -10x – 9y = -7 is a true equation, what would be the value of -30x

BenRoe asked Apr 7, 2022

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17 votes

If -10x – 9y = -7 is a true equation, what would be the value of
-30x – 27y?

BenRoe asked Apr 7, 2022

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19 votes

Answer:

-30x-27y = -21

Explanation:

We know that;

-30x-27y = 3(-10x-9y)

Recall, -10x-9y = -7

Thus; -30x-27y = 3(-7) = -21

Sine answered Apr 13, 2022

by Sine

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