-3(7-x)+12+3x=15

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Solution for -3(7-x)+12+3x=15 equation: 



-3(7-x)+12+3x=15

We move all terms to the left:

-3(7-x)+12+3x-(15)=0

We add all the numbers together, and all the variables

-3(-1x+7)+3x+12-15=0

We add all the numbers together, and all the variables

3x-3(-1x+7)-3=0

We multiply parentheses

3x+3x-21-3=0

We add all the numbers together, and all the variables

6x-24=0

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

6x=24

x=24/6

x=4

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