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解分式方程:(1)x−2x−3=12−13−x(2)5−xx−4+14−x=1(3)2x+1−31−x=6x2−1(4)x−2x+2−16x2−4=x+2x−2(5)6x−1+3x=x+5x(x−1)(6)xx−1−2x=1.

题目详情
解分式方程:
(1)
x−2
x−3
1
2
1
3−x

(2)
5−x
x−4
+
1
4−x
=1
(3)
2
x+1
3
1−x
6
x2−1

(4)
x−2
x+2
16
x2−4
x+2
x−2

(5)
6
x−1
+
3
x
x+5
x(x−1)

(6)
x
x−1
2
x
=1.

x−2
x−3
1
2
1
3−x

(2)
5−x
x−4
+
1
4−x
=1
(3)
2
x+1
3
1−x
6
x2−1

(4)
x−2
x+2
16
x2−4
x+2
x−2

(5)
6
x−1
+
3
x
x+5
x(x−1)

(6)
x
x−1
2
x
=1.
x−2
x−3
x−2x−2x−3x−3
1
2
1122
1
3−x
113−x3−x
5−x
x−4
+
1
4−x
=1
(3)
2
x+1
3
1−x
6
x2−1

(4)
x−2
x+2
16
x2−4
x+2
x−2

(5)
6
x−1
+
3
x
x+5
x(x−1)

(6)
x
x−1
2
x
=1.
5−x
x−4
5−x5−xx−4x−4
1
4−x
114−x4−x
2
x+1
3
1−x
6
x2−1

(4)
x−2
x+2
16
x2−4
x+2
x−2

(5)
6
x−1
+
3
x
x+5
x(x−1)

(6)
x
x−1
2
x
=1.
2
x+1
22x+1x+1
3
1−x
331−x1−x
6
x2−1
66x2−1x2−1x2−1x2−12−1
x−2
x+2
16
x2−4
x+2
x−2

(5)
6
x−1
+
3
x
x+5
x(x−1)

(6)
x
x−1
2
x
=1.
x−2
x+2
x−2x−2x+2x+2
16
x2−4
1616x2−4x2−4x2−4x2−42−4
x+2
x−2
x+2x+2x−2x−2
6
x−1
+
3
x
x+5
x(x−1)

(6)
x
x−1
2
x
=1.
6
x−1
66x−1x−1
3
x
33xx
x+5
x(x−1)
x+5x+5x(x−1)x(x−1)
x
x−1
2
x
=1.
x
x−1
xxx−1x−1
2
x
22xx
▼优质解答
答案和解析
(1)方程的两边同乘2(x-3),得
2(x-2)=x-3+2,
解得x=3.
检验:把x=3代入2(x-3)=0.
x=3是原方程的增根,
∴原方程无解.
(2)方程的两边同乘(x-4),得
5-x-1=x-4,
解得x=4.
检验:把x=4代入(x-4)=0.
x=4是原方程的增根,
∴原方程无解.
(3)方程的两边同乘(x+1)(x-1),得
2(x-1)+3(x+1)=6,
解得x=1.
检验:把x=1代入(x+1)(x-1)=0.
x=1是原方程的增根,
∴原方程无解.
(4)方程的两边同乘(x+2)(x-2),得
(x-2)22-16=(x+2)22,
解得x=-2.
检验:把x=-2代入(x+2)(x-2)=0.
x=-2是原方程的增根,
∴原方程无解.
(5)方程的两边同乘x(x-1),得
6x+3(x-1)=x+5,
解得x=1.
检验:把x=1代入x(x-1)=0.
x=1是原方程的增根,
∴原方程无解.
(6)方程的两边同乘x(x-1),得
x22-2(x-1)=x(x-1),
解得x=2.
检验:把x=2代入x(x-1)=2≠0.
∴原方程的解为:x=2.