x=2(-4x+90)

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



x=2(-4x+90)

We move all terms to the left:

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



We calculate terms in parentheses: -(2(-4x+90)), so:

2(-4x+90)

We multiply parentheses

-8x+180

Back to the equation:

-(-8x+180)



We get rid of parentheses

x+8x-180=0

We add all the numbers together, and all the variables

9x-180=0

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

9x=180

x=180/9

x=20

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