-x+12=-7x+30

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Solution for -x+12=-7x+30 equation: 



-x+12=-7x+30

We move all terms to the left:

-x+12-(-7x+30)=0

We add all the numbers together, and all the variables

-1x-(-7x+30)+12=0

We get rid of parentheses

-1x+7x-30+12=0

We add all the numbers together, and all the variables

6x-18=0

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

6x=18

x=18/6

x=3

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