SOLUTION: 180-5y=90-7y

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Question 155254: 180-5y=90-7y
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
180-5y=90-7y
-5y+7y=90-180
2y=-90
y=-90/2
y=-45 answer.
Proof:
180-5*-45=90-7*-45
180+225=90+315
405=405