-9(x+1)=-90

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Solution for -9(x+1)=-90 equation: 



-9(x+1)=-90

We move all terms to the left:

-9(x+1)-(-90)=0

We add all the numbers together, and all the variables

-9(x+1)+90=0

We multiply parentheses

-9x-9+90=0

We add all the numbers together, and all the variables

-9x+81=0

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

-9x=-81

x=-81/-9

x=+9

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