tìm x biết a, 2/3x – 3/2x = 5/12 b, 2/5 + 3/5 × (3x – 3,7) = -53/10 c, 7/9 ÷ ( 2 + 3/4x ) + 5/9 = 23/27 d, -2/3 × x + 1/5 = 3/10 e, | x | – 3/4 = 5
tìm x biết a, 2/3x – 3/2x = 5/12 b, 2/5 + 3/5 × (3x – 3,7) = -53/10 c, 7/9 ÷ ( 2 + 3/4x ) + 5/9 = 23/27 d, -2/3 × x + 1/5 = 3/10 e, | x | – 3/4 = 5/3 f, | 2x – 1/3 | + 5/6 … Đọc tiếp