(x+40)+(x+7)+(x-12)=180

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Solution for (x+40)+(x+7)+(x-12)=180 equation: 



(x+40)+(x+7)+(x-12)=180

We move all terms to the left:

(x+40)+(x+7)+(x-12)-(180)=0

We get rid of parentheses

x+x+x+40+7-12-180=0

We add all the numbers together, and all the variables

3x-145=0

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

3x=145

x=145/3

x=48+1/3

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