3(x-3)=12+2x

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Solution for 3(x-3)=12+2x equation: 



3(x-3)=12+2x

We move all terms to the left:

3(x-3)-(12+2x)=0

We add all the numbers together, and all the variables

3(x-3)-(2x+12)=0

We multiply parentheses

3x-(2x+12)-9=0

We get rid of parentheses

3x-2x-12-9=0

We add all the numbers together, and all the variables

x-21=0

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

x=21

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