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8=50-7n
We move all terms to the left:
8-(50-7n)=0
We add all the numbers together, and all the variables
-(-7n+50)+8=0
We get rid of parentheses
7n-50+8=0
We add all the numbers together, and all the variables
7n-42=0
We move all terms containing n to the left, all other terms to the right
7n=42
n=42/7
n=6
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