(x-9)+(x+12)=180

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Solution for (x-9)+(x+12)=180 equation: 



(x-9)+(x+12)=180

We move all terms to the left:

(x-9)+(x+12)-(180)=0

We get rid of parentheses

x+x-9+12-180=0

We add all the numbers together, and all the variables

2x-177=0

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

2x=177

x=177/2

x=88+1/2

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