SOLUTION: Brett is Robbbie's older brother. The sum of their ages is 39. The difference of the ages is 9. How old are Brett And Robbie?

Question 1078301: Brett is Robbbie's older brother. The sum of their ages is 39. The difference of the ages is 9. How old are Brett And Robbie?
Answer by ikleyn(52903) (Show Source): You can put this solution on YOUR website!
.

B + R = 39,
B - R =  9.


When you see couple of similar equations, add them immediately. You will get

2B = 48  ---  B = 48/2 = 24.  Brett is 24 years old.


Robbie is 39-24 = 15 years old.

Solved.

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