Toán Lớp 6: Bài 1:
a) (2,8.x – 32): 2/3 = -90
b) 2|1/2x – 1/3|- 3/2 = 1/4
Bài 2: Tính tổng x ² + y ² biết rằng: 4/3 = 8/x = y/21
Bài 3: Tìm x biết: (1/24.25 + 1/25.26 +…+ 1/29.30).120 + x : 1/3 = -4
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Toán Lớp 6: Bài 1:
a) (2,8.x – 32): 2/3 = -90
b) 2|1/2x – 1/3|- 3/2 = 1/4
Bài 2: Tính tổng x ² + y ² biết rằng: 4/3 = 8/x = y/21
Bài 3: Tìm x biết: (1/24.25 + 1/25.26 +…+ 1/29.30).120 + x : 1/3 = -4
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