x+2x-18=180

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Solution for x+2x-18=180 equation: 



x+2x-18=180

We move all terms to the left:

x+2x-18-(180)=0

We add all the numbers together, and all the variables

3x-198=0

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

3x=198

x=198/3

x=66

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