(3x)+(9x+12)=180

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Solution for (3x)+(9x+12)=180 equation: 



(3x)+(9x+12)=180

We move all terms to the left:

(3x)+(9x+12)-(180)=0

We get rid of parentheses

3x+9x+12-180=0

We add all the numbers together, and all the variables

12x-168=0

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

12x=168

x=168/12

x=14

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