题目内容
解方程.
(1)
x+
=
(2)4x-1.6x=36.
(1)
| 3 |
| 4 |
| 1 |
| 8 |
| 1 |
| 2 |
(2)4x-1.6x=36.
(1)
x+
=
x=
-
x=
x=
÷
x=
(2)4x-1.6x=36
(4-1.6)x=36
2.4x=36
x=36÷2.4
x=15
故答案是x=
,x=15.
| 3 |
| 4 |
| 1 |
| 8 |
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 8 |
| 3 |
| 4 |
| 3 |
| 8 |
x=
| 3 |
| 8 |
| 3 |
| 4 |
x=
| 1 |
| 2 |
(2)4x-1.6x=36
(4-1.6)x=36
2.4x=36
x=36÷2.4
x=15
故答案是x=
| 1 |
| 2 |
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