(1) 1x = 3x+2
(2)
211
x x =- (3)2141x x +=-
(4)5x +x -3x
=0
(5)
231-=x x
(6)
2
112=-x (7)
21011x x -=+- (8) 1111
x x x -=+- (9)25322x x x
-=--
(10)1
1112+=-+x x x
(11) 24321x x x x
x ++=++
(12)
312422x x x -=--
(13)
2212525x x x -=-+
(14)
3x x --6x 21-=21
(15)
x x x -=--23124
(16)213
x x x +=+ (17)x x x 22
1232=+- (18)
32131x x =++- (19)
2x 2-=1x-2x -4x+4 (20)
1x 2-=1x 42- (21)
255522-++x x x =1
(22)
1052112x x +--=2
(23)
2233111x x x x +-=-+-
(24)
2111x x x x
++=+
(25)
211=-++x x x x (26)1
23-=x x (27) 22122
x x x +=+ (28)111=+-x
x x . .
(29)0322=--x
x . (30) 13-x -)
1(2-+x x x =0 (31)
1211+=-x x (32)224124
x x x -+=+- (33)
2316111x x x +=+-- (34)
2311
x x =-+ (26)(35)2124111x x x +=+--
(36)13
321++=+x x x x (37)14143=-+--x x x
(38)
512552x x x =--- .
(39)
114112=---+x x x
分式方程练习题(40)
0(,0)1m n m n mn x x -=≠≠+.
(41)
6165122++=-+x x x x
(42)013132=--+--x
x x
(43)
212423=---x x x (44)x x+1 = 2x 3x+3
+1 (45)
23111y y y y -+=-
(46)x +4x (x -1) =3x -1
(47)
2||55x x x
-+=0 (48)x x x x --=-+
222
(49)
2114339
x x x +=-+- (50)⎪⎪⎩⎪⎪⎨⎧==-9
2
113111y x y x
(51)
x x x x x x x x ++-++=++-++21436587
答案:
(1) 1x = 3x+2
x =1
(2)
211
x x =- x=-1
(3)
2141x x
+=- 12x = (4)5x +x -3x
=0 x =﹣2
(5)
231-=x x 1x =-
(7)
2
112=-x x=5 (7)
21011x x -=+- x=3
(8)
1111x x x -=+- x=0
(9)
25322x x x -=-- 1x =
(10)
1
1112+=-+x x x x=2 (11) 24321x x x x
x ++=++ 4x =
(12)
312422x x x -=-- 53x =
(13)
2212525x x x -=-+ x=356
(14)
3x x --6x 21-=21 x =-2
(15)
x x x -=--23124 x =35-
(16)
213x x x +=+ x=6
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