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-4(1+3k)+3=83
We move all terms to the left:
-4(1+3k)+3-(83)=0
We add all the numbers together, and all the variables
-4(3k+1)+3-83=0
We add all the numbers together, and all the variables
-4(3k+1)-80=0
We multiply parentheses
-12k-4-80=0
We add all the numbers together, and all the variables
-12k-84=0
We move all terms containing k to the left, all other terms to the right
-12k=84
k=84/-12
k=-7
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