X+40=3x-20=2x+20

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Solution for X+40=3x-20=2x+20 equation: 



X+40=3X-20=2X+20

We move all terms to the left:

X+40-(3X-20)=0

We get rid of parentheses

X-3X+20+40=0

We add all the numbers together, and all the variables

-2X+60=0

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

-2X=-60

X=-60/-2

X=+30

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