-3(2+4x)=-90

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Solution for -3(2+4x)=-90 equation: 



-3(2+4x)=-90

We move all terms to the left:

-3(2+4x)-(-90)=0

We add all the numbers together, and all the variables

-3(4x+2)-(-90)=0

We add all the numbers together, and all the variables

-3(4x+2)+90=0

We multiply parentheses

-12x-6+90=0

We add all the numbers together, and all the variables

-12x+84=0

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

-12x=-84

x=-84/-12

x=+7

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