题目内容
解方程或比例.
| 4x+3×0.7=6.5 | x:8=
| x-
|
根据题意可得:
(1)4x+3×0.7=6.5,
4x+2.1=6.5,
4x+2.1-2.1=6.5-2.1,
4x=4.4,
4x÷4=4.4÷4,
x=1.1;
(2)x:8=
:
,
x=8×
,
x=6,
x÷
=6÷
,
x=5;
(3)x-
x=
,
x=
,
x÷
=
÷
,
x=
.
(1)4x+3×0.7=6.5,
4x+2.1=6.5,
4x+2.1-2.1=6.5-2.1,
4x=4.4,
4x÷4=4.4÷4,
x=1.1;
(2)x:8=
| 3 |
| 4 |
| 6 |
| 5 |
| 6 |
| 5 |
| 3 |
| 4 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
x=5;
(3)x-
| 3 |
| 5 |
| 3 |
| 5 |
| 2 |
| 5 |
| 3 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 3 |
| 5 |
| 2 |
| 5 |
x=
| 3 |
| 2 |
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