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0.75(6+n)=12
We move all terms to the left:
0.75(6+n)-(12)=0
We add all the numbers together, and all the variables
0.75(n+6)-12=0
We multiply parentheses
0.75n+4.5-12=0
We add all the numbers together, and all the variables
0.75n-7.5=0
We move all terms containing n to the left, all other terms to the right
0.75n=7.5
n=7.5/0.75
n=10
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