2x+80=7x-20

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Solution for 2x+80=7x-20 equation: 



2x+80=7x-20

We move all terms to the left:

2x+80-(7x-20)=0

We get rid of parentheses

2x-7x+20+80=0

We add all the numbers together, and all the variables

-5x+100=0

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

-5x=-100

x=-100/-5

x=+20

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