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9-n/2=13
We move all terms to the left:
9-n/2-(13)=0
We add all the numbers together, and all the variables
-n/2-4=0
We multiply all the terms by the denominator
-n-4*2=0
We add all the numbers together, and all the variables
-1n-8=0
We move all terms containing n to the left, all other terms to the right
-n=8
n=8/-1
n=-8
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