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0.3n-0.5=0.4-0.2n
We move all terms to the left:
0.3n-0.5-(0.4-0.2n)=0
We add all the numbers together, and all the variables
0.3n-(-0.2n+0.4)-0.5=0
We get rid of parentheses
0.3n+0.2n-0.4-0.5=0
We add all the numbers together, and all the variables
0.5n-0.9=0
We move all terms containing n to the left, all other terms to the right
0.5n=0.9
n=0.9/0.5
n=1+0.4/0.5
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