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7n+5+2n=3n+11
We move all terms to the left:
7n+5+2n-(3n+11)=0
We add all the numbers together, and all the variables
9n-(3n+11)+5=0
We get rid of parentheses
9n-3n-11+5=0
We add all the numbers together, and all the variables
6n-6=0
We move all terms containing n to the left, all other terms to the right
6n=6
n=6/6
n=1
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