问题 解答题
解方程:
3
4
=0.8×
2
3

X-
5
8
X=3.
答案

(1)X÷

3
4
=0.8×
2
3

3
4
=
8
15

3
4
×
3
4
=
8
15
×
3
4

x=

1
10

(2)X-

5
8
X=3,

3
8
x=3,

3
8
x÷
3
8
=3÷
3
8

x=8.

判断题
判断题