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5n+6=55-2n
We move all terms to the left:
5n+6-(55-2n)=0
We add all the numbers together, and all the variables
5n-(-2n+55)+6=0
We get rid of parentheses
5n+2n-55+6=0
We add all the numbers together, and all the variables
7n-49=0
We move all terms containing n to the left, all other terms to the right
7n=49
n=49/7
n=7
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