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-15-n/7=13
We move all terms to the left:
-15-n/7-(13)=0
We add all the numbers together, and all the variables
-n/7-28=0
We multiply all the terms by the denominator
-n-28*7=0
We add all the numbers together, and all the variables
-1n-196=0
We move all terms containing n to the left, all other terms to the right
-n=196
n=196/-1
n=-196
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