Question

Spencer can do 3 oil changes in 1 hour. Preston can do 5 oil changes every hour. If they work together how long

would it take them to do 24 oil changes?​

Answer 1

3 hours

Explanation:

3x + 5x = 24

add 3x and 5x = 8x

8x = 24

÷8 on both sides

x = 3 hours

So sorry if im wrong, I did most of the work in my head! Good luck and I hope I helped you!