题目内容
解方程或解比例
(1)1.2x-0.6=6.6
(2)
:x=3:
.
(1)1.2x-0.6=6.6
(2)
| 4 |
| 5 |
| 5 |
| 8 |
(1)1.2x-0.6=6.6,
1.2x-0.6+0.6=6.6+0.6,
1.2x=7.2,
1.2x÷1.2=7.2÷1.2,
x=6;
(2)
:x=3:
,
3x=
×
,
3x=
,
3x÷3=
÷3,
x=
.
1.2x-0.6+0.6=6.6+0.6,
1.2x=7.2,
1.2x÷1.2=7.2÷1.2,
x=6;
(2)
| 4 |
| 5 |
| 5 |
| 8 |
3x=
| 4 |
| 5 |
| 5 |
| 8 |
3x=
| 1 |
| 2 |
3x÷3=
| 1 |
| 2 |
x=
| 1 |
| 6 |
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