Solve. -9(4-k)/12 = 9(k+1)/8

Answer 1

divide both sides by -9
(4-k)/12 = -(k+1)/8
cross-multiply
8(4-k) = -12(k+1)
32 - 8k = -12k - 12
4k = -44
k = -11

Answer 2

8(4-k)=-12(k 1)
24-8k=-12k-12
-8k 12k=-12-24
4k=-36
K=-9