Answer:
k = -50
Step-by-step explanation:
3/5k - 5 = 7/10k
3*2 / 5 *2 = 6/10 to get a common denominator
6/10k - 5 = 7/10k subtract 6/10 from 7/10
-5 = 1/10k now eliminate fraction by multiple both sides by reciprocal (10/1)
-5(10) = 1/10(10)k
-50 = k