3(x-2)=21+12x

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Solution for 3(x-2)=21+12x equation: 



3(x-2)=21+12x

We move all terms to the left:

3(x-2)-(21+12x)=0

We add all the numbers together, and all the variables

3(x-2)-(12x+21)=0

We multiply parentheses

3x-(12x+21)-6=0

We get rid of parentheses

3x-12x-21-6=0

We add all the numbers together, and all the variables

-9x-27=0

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

-9x=27

x=27/-9

x=-3

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