12=5x+30-8x

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Solution for 12=5x+30-8x equation: 



12=5x+30-8x

We move all terms to the left:

12-(5x+30-8x)=0

We add all the numbers together, and all the variables

-(-3x+30)+12=0

We get rid of parentheses

3x-30+12=0

We add all the numbers together, and all the variables

3x-18=0

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

3x=18

x=18/3

x=6

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