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n+0.5n-0.3n=1.2n
We move all terms to the left:
n+0.5n-0.3n-(1.2n)=0
We add all the numbers together, and all the variables
n+0.5n-0.3n-(+1.2n)=0
We add all the numbers together, and all the variables
1.2n-(+1.2n)=0
We get rid of parentheses
1.2n-1.2n=0
We add all the numbers together, and all the variables
=0
n=0/1
n=0
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