-7*y=-91

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Solution for -7*y=-91 equation: 



-7y=-91

We move all terms to the left:

-7y-(-91)=0

We add all the numbers together, and all the variables

-7y+91=0

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

-7y=-91

y=-91/-7

y=+13

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