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(-7+n)/15=-1
We move all terms to the left:
(-7+n)/15-(-1)=0
We add all the numbers together, and all the variables
(n-7)/15-(-1)=0
We add all the numbers together, and all the variables
(n-7)/15+1=0
We multiply all the terms by the denominator
(n-7)+1*15=0
We add all the numbers together, and all the variables
(n-7)+15=0
We get rid of parentheses
n-7+15=0
We add all the numbers together, and all the variables
n+8=0
We move all terms containing n to the left, all other terms to the right
n=-8
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