12-3x=4-7x

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



12-3x=4-7x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3x+7x-4+12=0

We add all the numbers together, and all the variables

4x+8=0

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

4x=-8

x=-8/4

x=-2

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