-7y+7y-18y=18

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Solution for -7y+7y-18y=18 equation: 



-7y+7y-18y=18

We move all terms to the left:

-7y+7y-18y-(18)=0

We add all the numbers together, and all the variables

-18y-18=0

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

-18y=18

y=18/-18

y=-1

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