-y-8y=18

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Solution for -y-8y=18 equation: 



-y-8y=18

We move all terms to the left:

-y-8y-(18)=0

We add all the numbers together, and all the variables

-9y-18=0

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

-9y=18

y=18/-9

y=-2

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