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8+4n+2n=7n+2
We move all terms to the left:
8+4n+2n-(7n+2)=0
We add all the numbers together, and all the variables
6n-(7n+2)+8=0
We get rid of parentheses
6n-7n-2+8=0
We add all the numbers together, and all the variables
-1n+6=0
We move all terms containing n to the left, all other terms to the right
-n=-6
n=-6/-1
n=+6
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