SOLUTION: Berto is 5 years older than Joana. Three years ago, the sum of their ages is 21. How old are Berto and Joana now?( Write your answer this way- Berto-10/Joana-15)

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Question 1190119: Berto is 5 years older than Joana. Three years ago, the sum of their ages is 21. How old are Berto and Joana now?( Write your answer this way- Berto-10/Joana-15)
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
j+5 and j
Berto and Joana

%28j%2B5%29%2Bj-3-3=21
-
2j%2B5=27
2j=22
j=11
and
j%2B5=16