X+4=7x+31-3x

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Solution for X+4=7x+31-3x equation: 



X+4=7X+31-3X

We move all terms to the left:

X+4-(7X+31-3X)=0

We add all the numbers together, and all the variables

X-(4X+31)+4=0

We get rid of parentheses

X-4X-31+4=0

We add all the numbers together, and all the variables

-3X-27=0

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

-3X=27

X=27/-3

X=-9

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