Answer:
L= 4
S= 5
Step-by-step explanation:
Given in the question, L+s = 9
So
L= 9-s
Substituting the value of L in the following equation
1.5L + 0.9s = 10.5
1.5 (9-s) + 0.9s = 10.5
13.5 - 1.5s +0.9s = 10.5
13.5 - 10.5 = 1.5s - 0.9s
3= 0.6s
s= 5
Now substituting the value of s in the equation L+s=9, we get the following
L= 9-5
L=4
