Odpowiedź:
a = 21 m
b = 21 n
Mamy a + b = 21 m + 21 n = 21*(m + n) = 252 / : 21
m + n = 12
1 + 11 = 12 2 + 10 = 12 3 + 9 = 12 4 + 8 = 12 5 + 7 = 12 6 + 6 = 12
więc
a = 21 b = 21*11 = 231
a = 21*2 = 42 b = 21*10 = 210
a = 21*3 = 63 b = 21*9 = 189
a = 21*4 = 84 b = 21*8 = 168
a = 21*5 = 105 b = 21*7 = 147
a = 21*6 = 126 b = 21*6 = 126
Szczegółowe wyjaśnienie: