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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