D=-8
3(-8-8)-5 3(-16)-5=-48-5=-53
9(-8+2)+1=9(-6)+1=-54+1=-53
Answer:
14 elliptical machines
Step-by-step explanation:
t = # of treadmills
e = # of elliptical machines
t + e = 38
t = e + 10
Substitute:
e + 10 + e = 38
2e = 28
e = 14
Answer:
3
Step-by-step explanation:
12 / 4 = 3
4 can go into 12 three times, so the fraction 12/4 is equal to 3
Isolate the variable by dividing each side by factors that don't contain the variable.