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n=4.3n-7
We move all terms to the left:
n-(4.3n-7)=0
We get rid of parentheses
n-4.3n+7=0
We add all the numbers together, and all the variables
-3.3n+7=0
We move all terms containing n to the left, all other terms to the right
-3.3n=-7
n=-7/-3.3
n=2+0.4/3.3
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