Question

(7-10k) - (8-8k) + (10k+6)=-8

Answer 1

(7-10k) - (8-8k) + (10k+6) = -8
7-10k-8+8k+10k+6=-8
8k=-13
k=- 13/8
k= - 1 5/8
k = - 1.625

Answer 2

7-10к-8+8к+10к+6=-8
-10к+8к+10к=-7-6-8+8
8к=-13
к=-13/8