90+60+(x+42)=180

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Solution for 90+60+(x+42)=180 equation: 



90+60+(x+42)=180

We move all terms to the left:

90+60+(x+42)-(180)=0

We add all the numbers together, and all the variables

(x+42)-30=0

We get rid of parentheses

x+42-30=0

We add all the numbers together, and all the variables

x+12=0

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

x=-12

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