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22.1=7.9n-4.5n+4.1
We move all terms to the left:
22.1-(7.9n-4.5n+4.1)=0
We add all the numbers together, and all the variables
-(3.4n+4.1)+22.1=0
We get rid of parentheses
-3.4n-4.1+22.1=0
We add all the numbers together, and all the variables
-3.4n+18=0
We move all terms containing n to the left, all other terms to the right
-3.4n=-18
n=-18/-3.4
n=5+1/3.4
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