3x-4+7x=8x+12

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Solution for 3x-4+7x=8x+12 equation: 



3x-4+7x=8x+12

We move all terms to the left:

3x-4+7x-(8x+12)=0

We add all the numbers together, and all the variables

10x-(8x+12)-4=0

We get rid of parentheses

10x-8x-12-4=0

We add all the numbers together, and all the variables

2x-16=0

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

2x=16

x=16/2

x=8

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