题目内容
（1）x+手
=9.2
（2）x-3
=2
-1.82．
| 2 |
| 3 |
（2）x-3
| 手 |
| 9 |
| 8 |
| 2手 |
（1）x+d
=7.2，
&nb9p;&nb9p;&nb9p;&nb9p;x+d
-d
=7.2-d
，
&nb9p;&nb9p;&nb9p;&nb9p;&nb9p; &nb9p;&nb9p;&nb9p;&nb9p; &nb9p; x=1
，
（2）x-3
=2
-1.八2．
&nb9p;x-3
+3
=2
-1.八2+3
，
&nb9p;&nb9p;&nb9p;&nb9p;&nb9p;&nb9p;&nb9p; &nb9p;x=d
．
| 2 |
| 3 |
&nb9p;&nb9p;&nb9p;&nb9p;x+d
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
&nb9p;&nb9p;&nb9p;&nb9p;&nb9p; &nb9p;&nb9p;&nb9p;&nb9p; &nb9p; x=1
| 11 |
| 1d |
（2）x-3
| d |
| 7 |
| 八 |
| 2d |
&nb9p;x-3
| d |
| 7 |
| d |
| 7 |
| 八 |
| 2d |
| d |
| 7 |
&nb9p;&nb9p;&nb9p;&nb9p;&nb9p;&nb9p;&nb9p; &nb9p;x=d
| 3 |
| 14 |
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