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解方程.23x÷45=38x+15x=3613x+23=69.

编辑:chaxungu时间:2026-04-27 13:38:08分类:小学数学题库

解方程.
2
3
4
5
=
3
8

x+
1
5
x=36
1
3
x+
2
3
=
6
9
.(1)
2
3
4
5
=
3
8

2
3
4
5
×
4
5
=
3
8
×
4
5

2
3
x=
3
10

2
3
2
3
=
3
10
÷
2
3

x=
9
20


(2)x+
1
5
x=36
6
5
x=36
6
5
6
5
=36÷
6
5

x=30;

(3)
1
3
x+
2
3
=
6
9

1
3
x+
2
3
-
2
3
=
6
9
-
2
3

1
3
x=0
1
3
1
3
=0÷
1
3

x=0.