3n=5n-7

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Solution for 3n=5n-7 equation: 



3n=5n-7

We move all terms to the left:

3n-(5n-7)=0

We get rid of parentheses

3n-5n+7=0

We add all the numbers together, and all the variables

-2n+7=0

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

-2n=-7

n=-7/-2

n=3+1/2

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