X+12=3x+10x-20X

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Solution for X+12=3x+10x-20X equation: 



X+12=3X+10X-20X

We move all terms to the left:

X+12-(3X+10X-20X)=0

We add all the numbers together, and all the variables

X-(-7X)+12=0

We get rid of parentheses

X+7X+12=0

We add all the numbers together, and all the variables

8X+12=0

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

8X=-12

X=-12/8

X=-1+1/2

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