X+7=3x-29=-x+20

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Solution for X+7=3x-29=-x+20 equation: 



X+7=3X-29=-X+20

We move all terms to the left:

X+7-(3X-29)=0

We get rid of parentheses

X-3X+29+7=0

We add all the numbers together, and all the variables

-2X+36=0

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

-2X=-36

X=-36/-2

X=+18

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