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-(3-7n)+6(2n-1)=16+2n+5
We move all terms to the left:
-(3-7n)+6(2n-1)-(16+2n+5)=0
We add all the numbers together, and all the variables
-(-7n+3)+6(2n-1)-(2n+21)=0
We multiply parentheses
-(-7n+3)+12n-(2n+21)-6=0
We get rid of parentheses
7n+12n-2n-3-21-6=0
We add all the numbers together, and all the variables
17n-30=0
We move all terms containing n to the left, all other terms to the right
17n=30
n=30/17
n=1+13/17
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