90-x=3(180-x)+4

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Solution for 90-x=3(180-x)+4 equation: 



90-x=3(180-x)+4

We move all terms to the left:

90-x-(3(180-x)+4)=0

We add all the numbers together, and all the variables

-x-(3(-1x+180)+4)+90=0

We add all the numbers together, and all the variables

-1x-(3(-1x+180)+4)+90=0



We calculate terms in parentheses: -(3(-1x+180)+4), so:

3(-1x+180)+4

We multiply parentheses

-3x+540+4

We add all the numbers together, and all the variables

-3x+544

Back to the equation:

-(-3x+544)



We get rid of parentheses

-1x+3x-544+90=0

We add all the numbers together, and all the variables

2x-454=0

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

2x=454

x=454/2

x=227

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