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24.5=21.7-n
We move all terms to the left:
24.5-(21.7-n)=0
We add all the numbers together, and all the variables
-(-1n+21.7)+24.5=0
We get rid of parentheses
1n-21.7+24.5=0
We add all the numbers together, and all the variables
n+2.8=0
We move all terms containing n to the left, all other terms to the right
n=-2.8
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