3x+18+21x-6=180

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Solution for 3x+18+21x-6=180 equation: 



3x+18+21x-6=180

We move all terms to the left:

3x+18+21x-6-(180)=0

We add all the numbers together, and all the variables

24x-168=0

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

24x=168

x=168/24

x=7

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