20x+100=120

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Solution for 20x+100=120 equation: 



20x+100=120

We move all terms to the left:

20x+100-(120)=0

We add all the numbers together, and all the variables

20x-20=0

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

20x=20

x=20/20

x=1

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