Question

当X为何值时,分式5X+2/2X-3与19/4X-6的和的值为7/2

急急急急急！！！谢谢

Answer 1

(5X+2)/(2X-3)+19/(4X-6)=7/2
l两边同乘2（2x-3)：2(5X+2)+19=7(2x-3)
10x+4+19=14x-21
4x=44
x=11
当X=11时，分式5X+2/2X-3与19/4X-6的和的值为7/2 。

Answer 2

由题意得，原题等价于解方程（5X+2/2X-3）+（19/4X-6）＝7/2
将方程能分化为
[2(5x+2)+19]/2*(2x-3)=7/2
即为 10x+4+19=7*(2x-3)
10x+23=14x-21
4x=44
x=11

Answer 3

(5X+2)/(2X-3)+19/(4X-6)=7/2 \
(10X+4)/(4X-6)+19/(4X-6)=7/2
(10x+23)/(4x-6)=7/2
7(4x-6)=2(10x+23)
28x-42=20x+46
8x=88
x=11

当X为11时,分式5X+2/2X-3与19/4X-6的和的值为7/2

Answer 4

我想你是这个意思吧(5X+2)/(2X-3)+19/(4X-6)=7/2
=> (10X+4)/(4X-6)+19/(4X-6)=7/2
=> 2(10X+4+19)=7(4x-6)
=> 20X+46=28X-42
=> 88=8X
=> X=11

Answer 5

10x+4+19/4x-6 =7/2
x=—8