9y-4=8y+7

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Solution for 9y-4=8y+7 equation: 



9y-4=8y+7

We move all terms to the left:

9y-4-(8y+7)=0

We get rid of parentheses

9y-8y-7-4=0

We add all the numbers together, and all the variables

y-11=0

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

y=11

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