90+(2x+12)+42=180

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Solution for 90+(2x+12)+42=180 equation: 



90+(2x+12)+42=180

We move all terms to the left:

90+(2x+12)+42-(180)=0

We add all the numbers together, and all the variables

(2x+12)-48=0

We get rid of parentheses

2x+12-48=0

We add all the numbers together, and all the variables

2x-36=0

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

2x=36

x=36/2

x=18

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