4x+20=2x-80

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Solution for 4x+20=2x-80 equation: 



4x+20=2x-80

We move all terms to the left:

4x+20-(2x-80)=0

We get rid of parentheses

4x-2x+80+20=0

We add all the numbers together, and all the variables

2x+100=0

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

2x=-100

x=-100/2

x=-50

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