X+8+3x=7x-13

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Solution for X+8+3x=7x-13 equation: 



X+8+3X=7X-13

We move all terms to the left:

X+8+3X-(7X-13)=0

We add all the numbers together, and all the variables

4X-(7X-13)+8=0

We get rid of parentheses

4X-7X+13+8=0

We add all the numbers together, and all the variables

-3X+21=0

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

-3X=-21

X=-21/-3

X=+7

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