8y-7=9y-12

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Solution for 8y-7=9y-12 equation: 



8y-7=9y-12

We move all terms to the left:

8y-7-(9y-12)=0

We get rid of parentheses

8y-9y+12-7=0

We add all the numbers together, and all the variables

-1y+5=0

We move all terms containing y to the left, all other terms to the right

-y=-5

y=-5/-1

y=+5

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