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0.8n-0.2=0.4n
We move all terms to the left:
0.8n-0.2-(0.4n)=0
We add all the numbers together, and all the variables
0.8n-(+0.4n)-0.2=0
We get rid of parentheses
0.8n-0.4n-0.2=0
We add all the numbers together, and all the variables
0.4n-0.2=0
We move all terms containing n to the left, all other terms to the right
0.4n=0.2
n=0.2/0.4
n=0.2/0.4
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