| (2)同類項(解答) | 学習日 月 日( ) | |||
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| 1 | 6x+3x = 9x |
2 | 4x−2x = 2x |
| 3 | 3x−5x = −2x |
4 | −2x−7x = −9x |
| 5 | −7x+8x = x |
6 | 12x−12x = 0 |
| 7 | 2x+8x−5x = 5x |
8 | 3a−a+2a = 4a |
| 9 | 5x+1+2x+4 = 7x+5 |
10 | 6x+7−5x−7 = x |
| 11 | x−9+4x+5 = 5x−4 |
12 | 3x−7−5x+1 = −2x−6 |
| 13 | 2a−b+3a−2b = 5a−3b |
14 | 3x+7y−x+2y = 2x+9y |
| 15 | a+2b−7b+3a = 4a−5b |
16 | 4xy−8+2xy+5 = 6xy−3 |
| 17 | 1−2x+4+3x = 5+x |
18 | 3x2−4x−2x2+2x = x2−2x |
| 19 | 3x+2y−1−2x−y+1 = x+y |
20 | a2+4a−2+a2+5 = 2a2+4a+3 |
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