Hi!
I can help you with joy!
The first step in solving this equation is dividing both sides by -0.6:
-21:(-0.6)=-0.6k:(-0.6k)
35=k
k=35 (Answer)
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Additional comment
* Whatever we do to one side, we do to the other.
** A negative number divided by a negative number is a positive.
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Hope it helps! Enjoy your day!
Ask me if you have any questions.
~Misty~