题目内容
解方程
x+
x=
x+8=12.
x+
| 7 |
| 9 |
| 4 |
| 3 |
| 2 |
| 3 |
(1)x+
x=
x=
x÷
=
÷
x=
;
(2)
x+8=12
x+8-8=12-8
x÷
=4÷
x=6.
| 7 |
| 9 |
| 4 |
| 3 |
| 16 |
| 9 |
| 4 |
| 3 |
| 16 |
| 9 |
| 16 |
| 9 |
| 4 |
| 3 |
| 16 |
| 9 |
x=
| 3 |
| 4 |
(2)
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
x=6.
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