Toán Lớp 7: Tìm x,biết:
a) |10x + 7| < 37
b) |3 - 8x| ≤ 19
c) |x + 3| - 2x = |x - 4|
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Toán Lớp 7: Tìm x,biết:
a) |10x + 7| < 37
b) |3 - 8x| ≤ 19
c) |x + 3| - 2x = |x - 4|
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