x=4(180-x)+90

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Solution for x=4(180-x)+90 equation: 



x=4(180-x)+90

We move all terms to the left:

x-(4(180-x)+90)=0

We add all the numbers together, and all the variables

x-(4(-1x+180)+90)=0



We calculate terms in parentheses: -(4(-1x+180)+90), so:

4(-1x+180)+90

We multiply parentheses

-4x+720+90

We add all the numbers together, and all the variables

-4x+810

Back to the equation:

-(-4x+810)



We get rid of parentheses

x+4x-810=0

We add all the numbers together, and all the variables

5x-810=0

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

5x=810

x=810/5

x=162

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