Tìm x :
● x × 2 = 8..........................
● x × 3 = 15..........................
● 3 × x = 24..........................
● x × 2 = 8
x = 8 : 2
x = 4
● x × 3 = 15
x = 15 : 3
x = 5
● 3 × x = 24
x = 24 : 3
x = 8
-- Mod Toán 2
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