题目内容
解方程
:
=x:
4x-16=21.68.
| 3 |
| 4 |
| 9 |
| 10 |
| 3 |
| 5 |
4x-16=21.68.
(1)
:
=x:
,
x=
×
,
x÷
=
÷
,
x=
;
(2)4x-16=21.68,
4x-16+16=21.68+16,
4x=37.68,
4x÷4=37.68÷4,
x=9.42.
| 3 |
| 4 |
| 9 |
| 10 |
| 3 |
| 5 |
| 9 |
| 10 |
| 3 |
| 4 |
| 3 |
| 5 |
| 9 |
| 10 |
| 9 |
| 10 |
| 9 |
| 20 |
| 9 |
| 10 |
x=
| 1 |
| 2 |
(2)4x-16=21.68,
4x-16+16=21.68+16,
4x=37.68,
4x÷4=37.68÷4,
x=9.42.
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