90+(x+30)+(2x-18)=180

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Solution for 90+(x+30)+(2x-18)=180 equation: 



90+(x+30)+(2x-18)=180

We move all terms to the left:

90+(x+30)+(2x-18)-(180)=0

We add all the numbers together, and all the variables

(x+30)+(2x-18)-90=0

We get rid of parentheses

x+2x+30-18-90=0

We add all the numbers together, and all the variables

3x-78=0

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

3x=78

x=78/3

x=26

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