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

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



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

We move all terms to the left:

(2x+21)+(90)-(180)=0

We add all the numbers together, and all the variables

(2x+21)-90=0

We get rid of parentheses

2x+21-90=0

We add all the numbers together, and all the variables

2x-69=0

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

2x=69

x=69/2

x=34+1/2

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