2y+84=4y-7

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Solution for 2y+84=4y-7 equation: 



2y+84=4y-7

We move all terms to the left:

2y+84-(4y-7)=0

We get rid of parentheses

2y-4y+7+84=0

We add all the numbers together, and all the variables

-2y+91=0

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

-2y=-91

y=-91/-2

y=45+1/2

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