Antek jest dwa razy starszy od Mirka. Cztery lata temu Antek miał 3 razy więcej lat niż Mirek . Ile lat ma Antek a ile Mirek .
To ma być chyba jakimś równaniem zapisane.
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Antek - a
Mirek - m
a = 2m
a - 4 = (m - 4) *3
a = 2m /* (-1)
a - 4 = 3m - 12
-a = -2m
a - 4 = 3m - 12
+__________________
-a + a -4 = -2m +3m - 12
-4 = m - 12
m = 8
m = 8
a = 2m
m = 8
a = 16