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2 votes
Please help in Math!? What value of y makes the equation true?

A.
–28

B.
–21

C.
21

D.
28

Please help in Math!? What value of y makes the equation true? A. –28 B. –21 C. 21 D-example-1

1 Answer

5 votes

(-7)/(12) = (y)/(-36)

First, simplify
(y)/(-36) to
- (y)/(36) / Your problem should look like:
- (7)/(12) = -(y)/(36)
Second, multiply both sides by 36. / Your problem should look like:
-21=-y
Third, multiply both sides by -1. / Your problem should look like:
21 = y
Fourth, switch your sides. / Your problem should look like:
y = 21

Answer: C) 21

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