20x-100=80

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Solution for 20x-100=80 equation: 



20x-100=80

We move all terms to the left:

20x-100-(80)=0

We add all the numbers together, and all the variables

20x-180=0

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

20x=180

x=180/20

x=9

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