-3(6-x)+9=12

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Solution for -3(6-x)+9=12 equation: 



-3(6-x)+9=12

We move all terms to the left:

-3(6-x)+9-(12)=0

We add all the numbers together, and all the variables

-3(-1x+6)+9-12=0

We add all the numbers together, and all the variables

-3(-1x+6)-3=0

We multiply parentheses

3x-18-3=0

We add all the numbers together, and all the variables

3x-21=0

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

3x=21

x=21/3

x=7

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