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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

(-2x+4)+(5x+5)

We get rid of parentheses

-2x+5x+4+5

We add all the numbers together, and all the variables

3x+9

Back to the equation:

-(3x+9)



We get rid of parentheses

-3x-9+90=0

We add all the numbers together, and all the variables

-3x+81=0

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

-3x=-81

x=-81/-3

x=+27

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