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-3(6+4n)=-102
We move all terms to the left:
-3(6+4n)-(-102)=0
We add all the numbers together, and all the variables
-3(4n+6)-(-102)=0
We add all the numbers together, and all the variables
-3(4n+6)+102=0
We multiply parentheses
-12n-18+102=0
We add all the numbers together, and all the variables
-12n+84=0
We move all terms containing n to the left, all other terms to the right
-12n=-84
n=-84/-12
n=+7
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