x+30+2(x+30)=180

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



x+30+2(x+30)=180

We move all terms to the left:

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

We add all the numbers together, and all the variables

x+2(x+30)-150=0

We multiply parentheses

x+2x+60-150=0

We add all the numbers together, and all the variables

3x-90=0

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

3x=90

x=90/3

x=30

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