31n-45=420

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Solution for 31n-45=420 equation: 



31n-45=420

We move all terms to the left:

31n-45-(420)=0

We add all the numbers together, and all the variables

31n-465=0

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

31n=465

n=465/31

n=15

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