3(-2k+1)=21

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Solution for 3(-2k+1)=21 equation:



3(-2k+1)=21
We move all terms to the left:
3(-2k+1)-(21)=0
We multiply parentheses
-6k+3-21=0
We add all the numbers together, and all the variables
-6k-18=0
We move all terms containing k to the left, all other terms to the right
-6k=18
k=18/-6
k=-3

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