7n-2n=125

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Solution for 7n-2n=125 equation: 



7n-2n=125

We move all terms to the left:

7n-2n-(125)=0

We add all the numbers together, and all the variables

5n-125=0

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

5n=125

n=125/5

n=25

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