题目内容
解方程.
(1)
x-8=20
(2)0.4:
=8:x.
(1)
| 2 |
| 5 |
(2)0.4:
| 3 |
| 4 |
(1)
x-8=20,
x-8+8=20+8,
x÷
=28÷
,
x=70;
(2)0.4:
=8:x,
0.4x=
×8,
0.4x÷0.4=6÷0.4,
x=15.
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
x=70;
(2)0.4:
| 3 |
| 4 |
0.4x=
| 3 |
| 4 |
0.4x÷0.4=6÷0.4,
x=15.
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