3n+-7=-13

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Solution for 3n+-7=-13 equation: 



3n+-7=-13

We move all terms to the left:

3n+-7-(-13)=0

We add all the numbers together, and all the variables

3n+6=0

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

3n=-6

n=-6/3

n=-2

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