SOLUTION: 3 times James age is equal to 8 times Beth's age. The difference between the two is 15 years. How old is James and Beth?

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Question 190706: 3 times James age is equal to 8 times Beth's age. The difference between the two is 15 years. How old is James and Beth?
Answer by littlebear91(2) About Me  (Show Source):
You can put this solution on YOUR website!
3J=8B
J-15=B
Plug Equation 2 into Equation 1
3J=8*(J-15)
3J=8J-120
120=5J
J=24 Plug J into B , B=9