题目内容
求未知数x.
(1)6.6-4x-2x=3.06
(2)
x:
=7:
.
(1)6.6-4x-2x=3.06
(2)
| 1 |
| 7 |
| 4 |
| 5 |
| 7 |
| 8 |
(1)6.6-4x-2x=3.06,
6.6-6x+6x=3.06+6x,
6.6-3.06=3.06+6x-3.06,
3.54÷6=6x÷6,
x=0.59;
(2)
x:
=7:
,
x×
=
×7,
x÷
=
÷
,
x=44.8.
6.6-6x+6x=3.06+6x,
6.6-3.06=3.06+6x-3.06,
3.54÷6=6x÷6,
x=0.59;
(2)
| 1 |
| 7 |
| 4 |
| 5 |
| 7 |
| 8 |
| 1 |
| 7 |
| 7 |
| 8 |
| 4 |
| 5 |
| 1 |
| 8 |
| 1 |
| 8 |
| 28 |
| 5 |
| 1 |
| 8 |
x=44.8.
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