-7y-8=9+10y

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Solution for -7y-8=9+10y equation: 



-7y-8=9+10y

We move all terms to the left:

-7y-8-(9+10y)=0

We add all the numbers together, and all the variables

-7y-(10y+9)-8=0

We get rid of parentheses

-7y-10y-9-8=0

We add all the numbers together, and all the variables

-17y-17=0

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

-17y=17

y=17/-17

y=-1

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