(-x+12)=3x

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Solution for (-x+12)=3x equation: 



(-x+12)=3x

We move all terms to the left:

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

We add all the numbers together, and all the variables

(-1x+12)-3x=0

We add all the numbers together, and all the variables

-3x+(-1x+12)=0

We get rid of parentheses

-3x-1x+12=0

We add all the numbers together, and all the variables

-4x+12=0

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

-4x=-12

x=-12/-4

x=+3

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