合并同类项综合练习题75Word文件下载.docx
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合并同类项综合练习题75Word文件下载.docx
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5b+4b+6b4n+6f+9n+2f
2b+3d+18b+19d+17b+20d8mn+18mn-11mn+mn
19a2b-8b2c+28a2b+6b2c6m-3m2-3m+20m2-3
4175
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2c+3c+6c9z-4a+4z-9a
3m+5c+5m+14c+13m-10c6ab-7ab+20ab-ab
16x2y+3y2z+18x2y+9y2z2m-3m2-7m+9m2-2
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9
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3c-7c+8c6n+7d+9n-3d
8b-5n-9b+4n+10b-15n6pq-3pq-17pq+pq
7a2b-4b2c+16a2b-9b2c2n-6n2-2n+17n2+7
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—pq-9t+6pq8ab+6x2y+9ab+17ab
6a+8a+5a3t-6e+2t-5e
3b-3c-20b+4c-16b-12c6ab+7ab+11ab-ab
14a2b+6y2z+6a2b+6y2z3n-2n2+4n+19n2-5
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9e-9e-5e8y+9c+7y-10c
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—mn+2y+7mn5pq-20x2y+16pq-24pq
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7a+6c+15a+19c+20a-14c4mn-10mn-20mn+mn
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4b-7c+15b-9c-16b-13c8ab+13ab+13ab-ab
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