3x+18+3x+90=180

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Solution for 3x+18+3x+90=180 equation: 



3x+18+3x+90=180

We move all terms to the left:

3x+18+3x+90-(180)=0

We add all the numbers together, and all the variables

6x-72=0

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

6x=72

x=72/6

x=12

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