Toán Lớp 6: 1. Tìm số nguyên x, biết:
a) x – 17 = 23
b) 2(x – 1) = 7 + (-3)
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Toán Lớp 6: 1. Tìm số nguyên x, biết:
a) x – 17 = 23
b) 2(x – 1) = 7 + (-3)
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