Answer:
3 mile
Step-by-step explanation:
total miles= Monday+Tuesday+x
20=14+3+x
20=17+x
-17 -17
__________
3=x
Scott needs to run 3 more miles
Hope this helps!
He drives 160 miles to and from work a week
You subtract the 11 from both sides, then you get -3x = 33. Next, you divide -3 from both sides, and you get x= -11