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-4.2=2n+6.8
We move all terms to the left:
-4.2-(2n+6.8)=0
We get rid of parentheses
-2n-6.8-4.2=0
We add all the numbers together, and all the variables
-2n-11=0
We move all terms containing n to the left, all other terms to the right
-2n=11
n=11/-2
n=-5+1/2
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