x=90+(2x+21)=180

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Solution for x=90+(2x+21)=180 equation: 



x=90+(2x+21)=180

We move all terms to the left:

x-(90+(2x+21))=0



We calculate terms in parentheses: -(90+(2x+21)), so:

90+(2x+21)

determiningTheFunctionDomain
(2x+21)+90

We get rid of parentheses

2x+21+90

We add all the numbers together, and all the variables

2x+111

Back to the equation:

-(2x+111)



We get rid of parentheses

x-2x-111=0

We add all the numbers together, and all the variables

-1x-111=0

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

-x=111

x=111/-1

x=-111

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