3x+3+9x-3=180

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Solution for 3x+3+9x-3=180 equation: 



3x+3+9x-3=180

We move all terms to the left:

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

We add all the numbers together, and all the variables

12x-180=0

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

12x=180

x=180/12

x=15

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