7n-15=3n+5

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Solution for 7n-15=3n+5 equation: 



7n-15=3n+5

We move all terms to the left:

7n-15-(3n+5)=0

We get rid of parentheses

7n-3n-5-15=0

We add all the numbers together, and all the variables

4n-20=0

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

4n=20

n=20/4

n=5

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