Question 1016704
.
L=Luis's age; S=Shannon's age
.
L+S=108
L=108-S
.
L-9=4(S-9)
L-9=4S-36
L=4S-27
108-S=4S-27
135=5S
45=27
.
L=108-S=108-27=81
.
ANSWER: Luis is 81 and Shannon is 27.
.
CHECK:
L-9=4(S-9)
81-9=4(27-9)
72=4(18)
72=72
.

LIMIT ONE QUESTION PER POST.