(x+2x)-12=180

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



(x+2x)-12=180

We move all terms to the left:

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

We add all the numbers together, and all the variables

(+3x)-12-180=0

We add all the numbers together, and all the variables

(+3x)-192=0

We get rid of parentheses

3x-192=0

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

3x=192

x=192/3

x=64

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