9(x+2)-3x=12

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Solution for 9(x+2)-3x=12 equation: 



9(x+2)-3x=12

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-3x+9x+18-12=0

We add all the numbers together, and all the variables

6x+6=0

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

6x=-6

x=-6/6

x=-1

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