Toán Lớp 6: Tìm số tự nhiên x, biết:
a) 5x – 2 = 613
b) 8x – 6 = 82
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Toán Lớp 6: Tìm số tự nhiên x, biết:
a) 5x – 2 = 613
b) 8x – 6 = 82
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