题目内容
x÷
=
x+
x=
0.8x-1.5×4=18.
| 3 |
| 4 |
| 5 |
| 6 |
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 6 |
0.8x-1.5×4=18.
(1)x÷
=
,
x÷
×
=
×
,
x=
;
(2)
x+
x=
,
x=
,
x×
=
×
,
x=
;
(3)0.8x-1.5×4=18,
0.8x-6=18,
0.8x-6+6=18+6,
0.8x=24,
0.8x÷0.8=24÷0.8,
x=30.
| 3 |
| 4 |
| 5 |
| 6 |
x÷
| 3 |
| 4 |
| 3 |
| 4 |
| 5 |
| 6 |
| 3 |
| 4 |
x=
| 5 |
| 8 |
(2)
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 6 |
| 17 |
| 12 |
| 1 |
| 6 |
| 17 |
| 12 |
| 12 |
| 17 |
| 1 |
| 6 |
| 12 |
| 17 |
x=
| 2 |
| 17 |
(3)0.8x-1.5×4=18,
0.8x-6=18,
0.8x-6+6=18+6,
0.8x=24,
0.8x÷0.8=24÷0.8,
x=30.
练习册系列答案
相关题目