Toán Lớp 7: Tìm x biết : x : 12 = 2 : 3 ?
A:x=5
B:x=6
C:x=7
D:x=8
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Toán Lớp 7: Tìm x biết : x : 12 = 2 : 3 ?
A:x=5
B:x=6
C:x=7
D:x=8
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