问题 解答题
解方程:
χ÷
11
21
=
7
33
χ+
3
10
χ=135χ-
5
6
=
1
6
答案

(1)χ÷

11
21
=
7
33

χ÷

11
21
×
11
21
=
7
33
×
11
21

x=

1
9

(2)χ+

3
10
χ=13,

13
10
x=13,

13
10
x÷
13
10
=13÷
13
10

x=10;

(3)5χ-

5
6
=
1
6

5χ-

5
6
+
5
6
=
1
6
+
5
6

5x÷5=1÷5,

x=0.2.

综合
问答题