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34n=21+2n
We move all terms to the left:
34n-(21+2n)=0
We add all the numbers together, and all the variables
34n-(2n+21)=0
We get rid of parentheses
34n-2n-21=0
We add all the numbers together, and all the variables
32n-21=0
We move all terms containing n to the left, all other terms to the right
32n=21
n=21/32
n=21/32
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