2n-40=100

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Solution for 2n-40=100 equation: 



2n-40=100

We move all terms to the left:

2n-40-(100)=0

We add all the numbers together, and all the variables

2n-140=0

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

2n=140

n=140/2

n=70

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