Respuesta :

.6k+.9=1.6
.6k=.7
k=7/6= 1 1/6
k= 1 1/6
Hope this helps. 
Simplify

0.8 + 0.8 = 0.16

0.16 = 0.6k + 0.9 
-0.9

 0.7 = 0.6k
0.6k/0.6 = 0.7/0.6
k = 1 and 1/6