5X+3 3X--11------- --- ---------X--1 1--X
3个回答
(5x+3)/(x-1)-(3x-11)/(1-x)
=(5x+3)/(x-1)+(3x-11)/(x-1)
=(5x+3+3x-11)/(x-1)
=(8x-8)/(x-1)
=8
相关问题
1/1x3+1/3x5+1/5x7+1/7x9+1/9x11+1/11x13=
2/3x( )=1.5x( )=5/11x( )=1
1/x-3-2=4-x/3xx/2x-5+5/5-2x=11/x-1=x-2/x+1-1
4-8X=5-11X 1/3(6X-3)=1/3X+6
2x-1/x+1+3x+1/x+2-5x-11/x-1=
x-1分之5x+3-1-x分之3x-11
(1/2x3x4)+(1/3x4x5)+.+(1/10x11x12)
2-(1-x)=-2,11x+1=5(2X+1),4x-3(20-x)=3,5(X+8)-5=0,2(3-X)=9,-3
解下列方程3=11-X;3-X=7;2X+3=X-1;2X-1=-X+5;11/9X+2/7=2/9X-5/7;1/2X
(1)3/2x-1≤6/3x-4 (2) {3x+4y=11 5x-y=3 (3){x-3(x-1)≤7 1-3/2-5