Answer:
A: Miles Steve ran
B: Steve: x; Kevin: x+3
C: x+x+3=31
D: x=14
Step-by-step explanation:
A: Is the variable for the question. In this case, it's how many miles Steve ran.
B: I put Steve as x. Kevin would be x+3 because it says that he ran 3 more miles than Steve.
C: x+x+3=31 because again, Steve is x added with Kevin, which is x+3. 31 is the total.
D:x+x+3=31
2x+3=31
2x=28
x=14
Steve ran 14 miles
Hope this helped!