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# what is 5k divided by -k?

I'm doing a High School Algebra question in 7th Grade, and I honestly need help with all the steps. The question is k-8 over 7+k = -1 over 5. I need to know how to do all the steps, please.

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- MuzzammilLv 48 years agoFavorite Answer
k-8/7+k = -1/5

okay :P afraid? maths <3 awesome :P love XD

5(k-8) = -1 (7+k)

5k - 40 = -7 - k

5k+k= -7 + 40

6k = 33

k= 33/6

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- KunalLv 58 years ago
1st of stop using the word over, use "/" instead

Anyways

(k-8)/(7+k) = -1/5

Multiply both sides by 5 and (7+k)

5(k-8) = -(7+k)

5*k - 5*8 = -7 - k

5k - 40 = -7 - k

Add k both sides

5k+k - 40 = -7

6k - 40 = -7

Add 40 both sides

6k = -7+40

6k = 33

divide by 6 both sides

k = 33/6

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