algebra word problem

Question

Josh the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the other (not both). On Monday there were 6

 clients who did Plan A and 2

 who did Plan B. On Tuesday there were 3

 clients who did Plan A and 5

 who did Plan B. Josh trained his Monday clients for a total of 10

 hours and his Tuesday clients for a total of 10

 hours. How long does each of the workout plans last?

Answer 1

6A+2B=10

3A+B=5

2A+3B=10

2A+3(5-3A)=10

7A=5

A lasts 5/7th of an hour

B= 5-3(5/7)=2 6/7 hours