Answer:
2,700 units
Step-by-step explanation:
time
-7
y−x=9 ⇒ y=x+9
10+2x=−2y
5+x= -y ====== replacing y with x+9
5+x= -x-9
2x= -14
x= -7
the greatest common factor of 8,44,12 is 4
