100n-10=390

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Solution for 100n-10=390 equation: 



100n-10=390

We move all terms to the left:

100n-10-(390)=0

We add all the numbers together, and all the variables

100n-400=0

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

100n=400

n=400/100

n=4

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