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6-4(1+3n)=86
We move all terms to the left:
6-4(1+3n)-(86)=0
We add all the numbers together, and all the variables
-4(3n+1)+6-86=0
We add all the numbers together, and all the variables
-4(3n+1)-80=0
We multiply parentheses
-12n-4-80=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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