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Ana = s
Carmen = 3s + 6
3s + s + 3s + 6 = 62
7s + 6 = 62
7s = 62 - 6
7s = 56
s = 56/7
s = 8
3s =
3 (8) =
24
3s + 6 =
3 (8) + 6 =
24 + 6 =
30
Betty tiene 24 soles, Ana tiene 8 soles y Carmen tiene 30 soles