题目列表(包括答案和解析)
a+
| ||||
|
| 0.5x-0.7y |
| 0.2x+0.6y |
| ||||
2x+
|
| 10x-6y |
| 60x+5y |
| 10x-6y |
| 60x+5y |
0.2x-
| ||||
|
| 12x-30y |
| 20x+15 |
| 12x-30y |
| 20x+15 |
| 0.8x-0.78y |
| 0.5x+0.4y |
| 40x-39y |
| 25x+20y |
| 40x-39y |
| 25x+20y |
| ||
0.6a+
|
| 10a-8b |
| 12a+15b |
| 10a-8b |
| 12a+15b |
| ||||||
|
| 0.125a+0.375b |
| 0.25a-2.25b |
0.5x+
| ||
|
| ||||
| 4-3x2 |
| 0.3x+0.2y |
| 0.05x-y |
a-
| ||||
|
| 0.1a+2b |
| 0.4a+0.3b |
| a+20b |
| 4a+3b |
| a+20b |
| 4a+3b |
| 0.4m+0.2n | ||
|
| 2m+n |
| m+n |
| 2m+n |
| m+n |
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