-90=3(-4x-2)

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



-90=3(-4x-2)

We move all terms to the left:

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



We calculate terms in parentheses: -(3(-4x-2)), so:

3(-4x-2)

We multiply parentheses

-12x-6

Back to the equation:

-(-12x-6)



We get rid of 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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