Answer:
36
Step-by-step explanation:
first is half of michels age, 6, then multiply it by 2, which is samanthas age, and then multiply that by 3, which is bens age.
x=8-y
2x-y=7
2(8-y)-y=7
16-2y-y=7
-3y=-9
y=3
x=8-3=5