X-8=30+3x

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Solution for X-8=30+3x equation: 



X-8=30+3X

We move all terms to the left:

X-8-(30+3X)=0

We add all the numbers together, and all the variables

X-(3X+30)-8=0

We get rid of parentheses

X-3X-30-8=0

We add all the numbers together, and all the variables

-2X-38=0

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

-2X=38

X=38/-2

X=-19

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