90+((7x-20)+(4x))=180

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Solution for 90+((7x-20)+(4x))=180 equation: 



90+((7x-20)+(4x))=180

We move all terms to the left:

90+((7x-20)+(4x))-(180)=0

We add all the numbers together, and all the variables

((7x-20)+4x)-90=0



We calculate terms in parentheses: +((7x-20)+4x), so:

(7x-20)+4x

We add all the numbers together, and all the variables

4x+(7x-20)

We get rid of parentheses

4x+7x-20

We add all the numbers together, and all the variables

11x-20

Back to the equation:

+(11x-20)



We get rid of parentheses

11x-20-90=0

We add all the numbers together, and all the variables

11x-110=0

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

11x=110

x=110/11

x=10

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