Tính: 7/2x-3 + 1/2x-2 = 3/x-1. 1/2x - 1+3/12x-8 = 2/3x-2. . 1/x+2 + 2/2-x = 2x-3/x^2-4. x+5/x-5. x-5/x-5 = 20/x^2-25. x/x+3 - 2x-1/3-x = 2x^2+4x/x^2-9

B1 Tính: a)7/2x-3 + 1/2x-2 = 3/x-1. b) 1/2x - 1+3/12x-8 = 2/3x-2. . c)1/x+2 + 2/2-x = 2x-3/x^2-4. d) x+5/x-5. x-5/x-5 = 20/x^2-25. e) x/x+3 - 2x-1/3-x = 2x^2+4x/x^2-9. g) x-5/x+5 - 2x/x-5 = x(x+10)/25-x^2 f) 5/x-3 + 4/x+3 = x-5/x^2-2