问题 解答题
解方程
5
8
×
2
3
=50
2
3
=
9
10
1
5
x=
5
6
÷
7
6
答案

(1)x×

5
8
×
2
3
=50,

5
12
x=50,

5
12
x÷
5
12
=50÷
5
12

x=120;

(2)x÷

2
3
=
9
10

2
3
×
2
3
=
9
10
×
2
3

x=

3
5

(3)

1
5
x=
5
6
÷
7
6

1
5
x=
5
7

1
5
x
1
5
=
5
7
÷
1
5

x=3

4
7

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