-9(9+y)=18

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Solution for -9(9+y)=18 equation: 



-9(9+y)=18

We move all terms to the left:

-9(9+y)-(18)=0

We add all the numbers together, and all the variables

-9(y+9)-18=0

We multiply parentheses

-9y-81-18=0

We add all the numbers together, and all the variables

-9y-99=0

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

-9y=99

y=99/-9

y=-11

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