题目内容
| 解方程. x÷
| x-
| 6x-3.5x=
|
(1)x÷
=
x÷
×
=
×
x=
(2)x-
x=3
x=3
x×
=3×
x=8
(3)6x-3.5x=
÷
2.5x=
×
2.5x=0.75
2.5x÷2.5=0.75÷2.5
x=0.3
| 3 |
| 4 |
| 4 |
| 5 |
x÷
| 3 |
| 4 |
| 3 |
| 4 |
| 4 |
| 5 |
| 3 |
| 4 |
x=
| 3 |
| 5 |
(2)x-
| 5 |
| 8 |
| 3 |
| 8 |
| 3 |
| 8 |
| 8 |
| 3 |
| 8 |
| 3 |
x=8
(3)6x-3.5x=
| 1 |
| 5 |
| 4 |
| 15 |
2.5x=
| 1 |
| 5 |
| 15 |
| 4 |
2.5x=0.75
2.5x÷2.5=0.75÷2.5
x=0.3
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