4n-20=100

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Solution for 4n-20=100 equation: 



4n-20=100

We move all terms to the left:

4n-20-(100)=0

We add all the numbers together, and all the variables

4n-120=0

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

4n=120

n=120/4

n=30

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