初一数学上册合并同类项专项练习题29Word格式文档下载.docx
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初一数学上册合并同类项专项练习题29Word格式文档下载.docx
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2
—mn-3m-5mn5pq-19a2b+15pq+9pq
3
2b+4b-4b5n-2e+8n+6e
4m+7n-5m-6n+18m-18n6ab+12ab-11ab-ab
24a2b+7b2c+25a2b-4b2c2m-6m2+5m+13m2+5
1175
—m+—n-—n-—m8n2+4mn+8n2-7
3737
4
—ab-9m+5ab4xy+6x2y-16xy-30xy
8b-3b+6b9z-7b-9z-2b
4a+5n-12a-6n-18a+16n8xy+8xy+15xy-xy
14x2y+6y2z+30x2y+5y2z3y+9y2-4y+7y2-1
5175
—m+—n+—n-—m2y2+3xy+2y2+3
4646
1
—mn-8n-3mn3ab-3x2y+4ab+6ab
7a+2a-3a5m-8d+6m+8d
8a-2n+13a-15n-10a-11n2pq-6pq-14pq-pq
6x2y-3y2z-5x2y+9y2z6z-8z2+4z+3z2-5
4175
—x+—t-—t-—x18y2-6ab+8y2+2
3636
—xy-7n+4xy9mn-9x2y-6mn-3mn
3d+9d+4d9m-6a-5m-9a
8b-6n+3b-14n+17b-19n4mn+2mn+17mn-mn
7a2b+3y2z+9a2b-2y2z4y+2y2-6y+9y2-4
1575
—z-—y-—y-—z7x2-6xy+3x2-4
2626
—ab+4y-2ab5pq-17x2y-6pq-19pq
3b-5b-5b2y-6b+7y+7b
4a+6n+15a-5n+12a-15n5pq+8pq-16pq-pq
28x2y+2y2z-4x2y+9y2z9n+2n2-3n-16n2-7
1775
—m+—y-—y+—m2n2-6xy+2n2+5
5656
—mn-2x-4mn7pq+14x2y-20pq-7pq
4e-2e-6e7x+6f-6x+10f
3b-9n+4b+13n-16b+11n8pq-2pq+14pq-pq
21x2y-4b2c+17x2y-4b2c5z+4z2-6z-4z2-1
—m+—t-—t-—m11n2-4xy-5n2-1
2727
—pq-3m+6pq2xy+16a2b+17xy+5xy
8
6d-4d+5d6z-5b-8z+6b
6m+9n-14m+19n-11m+17n6xy-15xy+10xy-xy
18a2b+8y2z+9a2b-4y2z7x+6x2-5x-7x2+3
—x-—t-—t+—x5t2+7ab+9t2+4
5
—mn-9z+7mn8pq+20a2b+11pq-10pq
6b+9b+7b2z+7f+4z-5f
2m+2c+13m-20c-12m+10c7xy-14xy+14xy+xy
20x2y-7b2c+30x2y-6b2c8m-6m2-5m+7m2-3
—x-—y+—y-—x5y2-9xy+8y2+6
—pq+9z-7pq5mn+15a2b-14mn-14mn
7
7a-2a+8a4n+8a+2n-10a
6b-3c+20b+4c+15b+15c3mn-10mn-17mn-mn
25a2b+8b2c+27a2b-9b2c8y+3y2+6y-20y2+6
—z+—n+—n+—z20n2-5mn+2n2+2
—xy+2m-8xy5ab-11a2b+6ab+14ab
3b-4b+7b5m-2a-5m+7a
4a+6d+13a-13d-14a+13d7pq-3pq-12pq-pq
10x2y+9b2c-20x2y+8b2c9n-5n2+7n-19n2-6
—z+—n+—n-—z13n2-9xy+8n2-7
—xy-9m-6xy2ab+7x2y-10ab-8ab
6
4d-3d+9d3m-5b-4m+10b
2m+8n-7m-17n-12m-13n6mn-3mn-14mn-mn
13x2y-4y2z+27x2y-2y2z7y+2y2-8y+8y2+2
1875
—m-—n-—n-—m13y2-2pq+2y2-9
—mn+8n+4mn3ab-6x2y-9ab+28ab
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