X+4-3x=7-x

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Solution for X+4-3x=7-x equation: 



X+4-3X=7-X

We move all terms to the left:

X+4-3X-(7-X)=0

We add all the numbers together, and all the variables

X-3X-(-1X+7)+4=0

We add all the numbers together, and all the variables

-2X-(-1X+7)+4=0

We get rid of parentheses

-2X+1X-7+4=0

We add all the numbers together, and all the variables

-1X-3=0

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

-X=3

X=3/-1

X=-3

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