Tìm x a. 6+x/ 33 = 7/11 b. x/5 < 3/7 c. 15/26 + x/26 = 46/52

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By Kennedy

Tìm x
a. 6+x/ 33 = 7/11
b. x/5 < 3/7 c. 15/26 + x/26 = 46/52




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