初一数学上册合并同类项专项练习题22.docx
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初一数学上册合并同类项专项练习题22.docx
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初一数学上册合并同类项专项练习题22
5c+5c-8c9x-5f+2x+10f
5m+6d+20m-11d-17m-12d8pq+11pq+19pq+pq
14x2y-9b2c-17x2y-9b2c9z-2z2-6z-15z2+5
5775
—m+—n+—n+—m2y2-7ab+3y2-8
4646
1
—mn-6y-8mn5ab-11x2y+4ab+21ab
4
3f+6f-5f3t+4b+9t-5b
3b+4n+13b-6n+12b-13n6xy+20xy+13xy+xy
11x2y+5y2z-23x2y+4y2z8y-8y2+7y+5y2-3
3175
—m-—n+—n-—m11x2+8ab+2x2-4
2727
1
—ab+4x-8ab3ab+19x2y+11ab+3ab
5
5b+6b-9b6t-9c-6t-4c
4b-4c-12b-14c-20b-17c9pq+13pq-16pq+pq
6a2b+5b2c-21a2b+6b2c9x+8x2+4x+2x2-5
1675
—x+—t+—t-—x3x2+3xy+6x2-4
2727
1
—mn-8n+3mn7ab+15x2y+7ab+20ab
7
8a+2a-5a4t+7d-7t-4d
4m+8c+18m+20c-15m-15c7pq+17pq+17pq+pq
22a2b-2y2z-2a2b-9y2z5z-7z2+8z-17z2+5
4175
—m-—n-—n-—m10n2+8mn-5n2+3
3636
1
—pq+8x+3pq7mn+14x2y-7mn+12mn
6
4b+6b-9b7t-8b+6t-6b
8b-2c+14b+7c+19b-14c8xy+5xy+17xy-xy
30a2b-2y2z+8a2b+3y2z8n+2n2+6n-9n2-9
4675
—x+—n-—n-—x14n2+6pq-6n2-9
5757
1
—mn-5x+7mn3xy+18a2b-6xy-22xy
5
3d-5d+4d6z+3d-9z-7d
5a+2c+6a+12c+18a-19c9pq-18pq+13pq-pq
5a2b+3y2z-24a2b-9y2z9n+4n2-8n+18n2-2
1975
—m-—t+—t-—m14m2+3ab-5m2-6
4848
1
—ab-9m-6ab6pq-8x2y+10pq-12pq
2
9f-9f+8f10z-9d-8z-4d
4a-4d+16a-18d-12a-13d2ab-2ab+16ab-ab
14a2b+6b2c+4a2b+5b2c2n+6n2+8n+4n2-2
1175
—m-—n+—n-—m3y2+6mn-4y2+2
4747
1
—pq+9x-8pq7pq+4a2b-16pq-24pq
7
9c-2c+4c2n+2f+2n+10f
8b-7d+12b+8d+18b-14d6mn+14mn-20mn-mn
25x2y-5y2z+26x2y+2y2z6y+7y2-4y+7y2-2
3175
—z-—y-—y-—z12z2+2ab+6z2+6
2727
6
—xy+9n+7xy7ab+15x2y-18ab+19ab
7
3a+4a+9a8t-2e+5t-3e
5m-9d+9m+6d-15m+20d8xy-10xy+17xy-xy
9a2b+3y2z+7a2b+9y2z9x-2x2+7x-20x2+8
3175
—x-—t-—t+—x4m2+9pq-3m2-4
4747
1
—ab+4y-9ab9xy+19a2b-13xy+17xy
7
3e+8e-8e6m+6f-2m-3f
2m-4n-2m+18n-18m+14n4mn+7mn-15mn-mn
19x2y-4b2c-30x2y-4b2c2x-3x2-3x-2x2+9
1175
—m+—y-—y+—m6t2+9pq+3t2-2
3737
1
—ab+3m-7ab3xy-6a2b-15xy-9xy
2
3a-7a+6a10m-3d-5m-5d
7m-8c+10m-2c+18m-13c4pq+15pq+13pq+pq
30a2b+3b2c-28a2b+8b2c5n-3n2+4n-13n2+2
1175
—x-—t+—t-—x18z2-5mn+5z2-4
5656
4
—xy+7t-2xy6xy-18a2b-6xy+15xy
5
7f-8f+6f6x+6e+9x-2e
5b-5d+12b-12d-13b-12d5xy-7xy-20xy-xy
3a2b+6y2z-27a2b-6y2z8z-5z2-4z-8z2+3
4175
—z-—t+—t-—z15n2+2ab-3n2-5
3636
1
—ab+3m-5ab4xy-8a2b+2xy-8xy
6
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- 初一 数学 上册 合并 同类项 专项 练习题 22