题目内容
求未知数x
(1)13
x-6.4x=2.22
(2)4
:x=7
:12.
(1)13
| 4 |
| 5 |
(2)4
| 3 |
| 4 |
| 1 |
| 8 |
(1)13
x-6.4x=2.22,
7.4x=2.22,
7.4x÷7.4=2.22÷7.4,
x=0.3;
(2)4
:x=7
:12,
7
x=4
×12,
7
x=57,
x=8.
| 4 |
| 5 |
7.4x=2.22,
7.4x÷7.4=2.22÷7.4,
x=0.3;
(2)4
| 3 |
| 4 |
| 1 |
| 8 |
7
| 1 |
| 8 |
| 3 |
| 4 |
7
| 1 |
| 8 |
x=8.
练习册系列答案
相关题目