题目内容
求未知数χ
0.2χ+9.7=49.7
:
=
:χ
0.2χ+9.7=49.7
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 10 |
(1)0.2x+9.7=49.7,
0.2x+9.7-9.7=49.7-9.7,
0.2x÷0.2=40÷0.2,
x=200;
(2)
:
=
:x,
x=
×
,
x×8=
×8,
x=
.
0.2x+9.7-9.7=49.7-9.7,
0.2x÷0.2=40÷0.2,
x=200;
(2)
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 10 |
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 10 |
| 1 |
| 8 |
| 1 |
| 40 |
x=
| 1 |
| 5 |
练习册系列答案
相关题目