-90=-5(2x+4)

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Solution for -90=-5(2x+4) equation: 



-90=-5(2x+4)

We move all terms to the left:

-90-(-5(2x+4))=0



We calculate terms in parentheses: -(-5(2x+4)), so:

-5(2x+4)

We multiply parentheses

-10x-20

Back to the equation:

-(-10x-20)



We get rid of parentheses

10x+20-90=0

We add all the numbers together, and all the variables

10x-70=0

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

10x=70

x=70/10

x=7

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