1)(7x-3)/(x-1)=2/3
2)(3-7x)/(1+x)=1/2
3)(1-x)/(x+1)-(3+2x)/(x+1)=0
4) (1-x)/(x+1)+3=(2x+3)/(x+1)
5) 1/(x-2)+4=(2x-3)/(x-2)
6)7/(2x-3)+1=(6-2x)/(2x-3)
7) (8-x)/(x-7)-8=1/(x-7)
8) 5/(x-2)+6/(3-4x)=0
9)(4x+7)/(x-1)=(12x+5)/(3x+4)
10) (x+1)/(x-2)=1/(x^2-4)
11) 3/(x+1)=5/(2x+2)
12) (x+2)/(x-2)-1/x=2/(x(x-2))
13) (x+2)/x-(x^2+5x+4)/x(x+2) =x/(x+2)
14) 1/(x+1)-5/(x-2)=15/(x+1)(2-x)
15) (1-6x)/(x-2)+(9x+4)/(x+2)=(x(3x-2)+1)/(x^2-4)
16) (x+5)/(x-5)-(x-5)/(x+5)=20/(x^2-25)
17) (3x+2)/(3x-2)-6/(2+3x)=(9x^2)/(〖9x〗^2-4)
18) (x-1)/x+1/(x+1)=(2x-1)/(2x^2+2)
19) 2/(x+1)-(3x+1)/((x+1) )=1/(x+1)(x-2)
20) (x+5)/(3x-6)-1/2=(2x-3)/(2x-4)
Loga
Sinh Học lớp 12
