5k+66=21

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Solution for 5k+66=21 equation: 



5k+66=21

We move all terms to the left:

5k+66-(21)=0

We add all the numbers together, and all the variables

5k+45=0

We move all terms containing k to the left, all other terms to the right

5k=-45

k=-45/5

k=-9

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