7=3n+-5

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Solution for 7=3n+-5 equation: 



7=3n+-5

We move all terms to the left:

7-(3n+-5)=0

We add all the numbers together, and all the variables

-(3n-5)+7=0

We get rid of parentheses

-3n+5+7=0

We add all the numbers together, and all the variables

-3n+12=0

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

-3n=-12

n=-12/-3

n=+4

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