-7+7x-12+3x+4=15

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Solution for -7+7x-12+3x+4=15 equation: 



-7+7x-12+3x+4=15

We move all terms to the left:

-7+7x-12+3x+4-(15)=0

We add all the numbers together, and all the variables

10x-30=0

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

10x=30

x=30/10

x=3

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