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0.12n+0.06(2400-n)=0.08(2400)
We move all terms to the left:
0.12n+0.06(2400-n)-(0.08(2400))=0
We add all the numbers together, and all the variables
0.12n+0.06(-1n+2400)-(0.0824)=0
We add all the numbers together, and all the variables
0.12n+0.06(-1n+2400)-0.0824=0
We multiply parentheses
0.12n-0.06n+144-0.0824=0
We add all the numbers together, and all the variables
0.06n+143.9176=0
We move all terms containing n to the left, all other terms to the right
0.06n=-143.9176
n=-143.9176/0.06
n=-2398+0.037599999999998/0.06
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