-90=-3x+4(2x-10)

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Solution for -90=-3x+4(2x-10) equation: 



-90=-3x+4(2x-10)

We move all terms to the left:

-90-(-3x+4(2x-10))=0



We calculate terms in parentheses: -(-3x+4(2x-10)), so:

-3x+4(2x-10)

We multiply parentheses

-3x+8x-40

We add all the numbers together, and all the variables

5x-40

Back to the equation:

-(5x-40)



We get rid of parentheses

-5x+40-90=0

We add all the numbers together, and all the variables

-5x-50=0

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

-5x=50

x=50/-5

x=-10

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