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2023-10-13 22:25:25
tớ lm tắt
số con số chân
gà a 2a
thỏ 12+a 4 ( 12 + a ) = 48 + 4 a
2a + 48 + 4a = 228
6a + 48 = 228
6a = 228 - 48
6a = 180
a = 180 : 6
a = 30
Vậy số gà là 30