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3.2n+0.4=4.2n-0.6
We move all terms to the left:
3.2n+0.4-(4.2n-0.6)=0
We get rid of parentheses
3.2n-4.2n+0.6+0.4=0
We add all the numbers together, and all the variables
-1n+1=0
We move all terms containing n to the left, all other terms to the right
-n=-1
n=-1/-1
n=1
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