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3(n+1.31)=9.12
We move all terms to the left:
3(n+1.31)-(9.12)=0
We add all the numbers together, and all the variables
3(n+1.31)-9.12=0
We multiply parentheses
3n+3.93-9.12=0
We add all the numbers together, and all the variables
3n-5.19=0
We move all terms containing n to the left, all other terms to the right
3n=5.19
n=5.19/3
n=1+2.19/3
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