试题:
解下列方程.
x-
1
3
=
3
4
x+
1
4
=
5
7
x-
7
12
=
1
8
x-
9
10
=1
解方程 2016-05-21

答案:

我来补答
(1)x-
1
3
=
3
4

x-
1
3
+
1
3
=
3
4
+
1
3

x=1
1
12


(2)x+
1
4
=
5
7

x+
1
4
-
1
4
=
5
7
-
1
4

x=
13
28


(3)x-
7
12
=
1
8

x-
7
12
+
7
12
=
1
8
+
7
12

x=
17
24


(4)x-
9
10
=1
x-
9
10
+
9
10
=1+
9
10

x=1
9
10
 
 
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