Tadeus and Jolana have a total of CZK 15. Jolana has half that of Tadeus. Nevertheless, Jolana has 3 coins and Tadeus 2. Which coin does Tadeus have and which Jolan?

Correct result:

j =  5
t =  10



j+t = 15
2j-t = 0

j = 5
t = 10

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