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-3.5(1-2n)=1.4n
We move all terms to the left:
-3.5(1-2n)-(1.4n)=0
We add all the numbers together, and all the variables
-3.5(-2n+1)-(+1.4n)=0
We multiply parentheses
7n-(+1.4n)-3.5=0
We get rid of parentheses
7n-1.4n-3.5=0
We add all the numbers together, and all the variables
5.6n-3.5=0
We move all terms containing n to the left, all other terms to the right
5.6n=3.5
n=3.5/5.6
n=2.3333333333333/3.7333333333333
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