4x-120=2x-40

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Solution for 4x-120=2x-40 equation: 



4x-120=2x-40

We move all terms to the left:

4x-120-(2x-40)=0

We get rid of parentheses

4x-2x+40-120=0

We add all the numbers together, and all the variables

2x-80=0

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

2x=80

x=80/2

x=40

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