X-5x=12-7x

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Solution for X-5x=12-7x equation: 



X-5X=12-7X

We move all terms to the left:

X-5X-(12-7X)=0

We add all the numbers together, and all the variables

X-5X-(-7X+12)=0

We add all the numbers together, and all the variables

-4X-(-7X+12)=0

We get rid of parentheses

-4X+7X-12=0

We add all the numbers together, and all the variables

3X-12=0

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

3X=12

X=12/3

X=4

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