8x+40=4x+120

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Solution for 8x+40=4x+120 equation: 



8x+40=4x+120

We move all terms to the left:

8x+40-(4x+120)=0

We get rid of parentheses

8x-4x-120+40=0

We add all the numbers together, and all the variables

4x-80=0

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

4x=80

x=80/4

x=20

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