-30=3x-8x

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



-30=3x-8x

We move all terms to the left:

-30-(3x-8x)=0

We add all the numbers together, and all the variables

-(-5x)-30=0

We get rid of parentheses

5x-30=0

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

5x=30

x=30/5

x=6

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