初一数学上册合并同类项专项练习题37.docx
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初一数学上册合并同类项专项练习题37
8b-9b-6b10x+4a-5x+6a
4a-8d-11a+11d-12a+20d2pq+3pq+19pq-pq
26x2y-7y2z-11x2y+8y2z3z+5z2-7z-11z2-2
1875
—m+—y+—y-—m5t2+5ab+2t2+6
5757
1
—pq+6t+5pq2pq-6a2b-19pq-14pq
8
8e+5e-6e7t-3e-7t+10e
5b+2n+8b-3n+18b+11n2xy+8xy+10xy-xy
20a2b+4b2c+20a2b-8b2c6z-3z2+2z-20z2-2
1975
—z+—y-—y-—z15z2-8ab-3z2-7
2828
1
—ab+4y-6ab3xy-17a2b-19xy-24xy
2
6d-6d+7d7y+9f-4y-4f
7a-6c+3a+2c-13a-11c6pq-6pq+20pq+pq
30x2y-7b2c+12x2y-7b2c8z-9z2+9z-19z2-7
4775
—x+—t-—t+—x4z2-3ab+6z2+8
3838
1
—pq-3m+6pq3pq+4x2y-6pq-28pq
8
6a+6a+2a7m+3a+5m-2a
7m-3c-7m-6c+14m+17c3xy+8xy-19xy+xy
2a2b-3b2c-9a2b-9b2c5n-2n2+7n-13n2-7
1975
—z+—y+—y+—z18n2+7pq-6n2-8
2828
4
—mn+7x-8mn7ab-14a2b+20ab-19ab
5
5c+8c-7c5t+8e+4t-8e
7m-2n+5m+10n-12m+17n6mn-18mn+12mn+mn
17a2b+5y2z+7a2b+9y2z2t-9t2+6t-12t2+4
5875
—z-—n-—n+—z6y2-9ab+5y2-9
4747
7
—xy-3z-2xy8pq+9x2y-7pq+22pq
6
6b+5b+9b5m-7d-9m+2d
6b-4d+19b+12d-19b-12d5xy+13xy-17xy-xy
30a2b-9y2z+29a2b-4y2z8n+8n2+4n-19n2-3
3875
—z-—t-—t-—z13m2-8ab-8m2+4
2727
1
—mn+5m-7mn2pq-15a2b-9pq-20pq
8
9f+2f-4f6y+2d-3y+10d
7b+9n-10b-19n-10b-18n7mn+20mn-10mn+mn
18x2y-3y2z+13x2y-9y2z4y-6y2-2y-2y2+7
1175
—z-—n+—n+—z20m2+8pq+7m2+2
3838
7
—xy+9n+8xy3xy+3a2b+14xy-22xy
8
4b-5b+6b4t+4f+7t+10f
2m-5d+19m+7d+13m-13d8ab+2ab+11ab-ab
15a2b+4y2z+3a2b+4y2z2t+5t2+6t-4t2-7
1675
—z-—t-—t+—z12z2+3mn+6z2-7
4747
1
—mn+4y-7mn4ab+2x2y+2ab+17ab
5
8d+6d-2d5n+7d+5n-9d
6b-5d-7b+14d-11b-15d9xy-14xy+10xy+xy
28x2y-2b2c-25x2y-3b2c9x+5x2+2x+11x2+8
1775
—x+—n+—n+—x2t2+5pq-4t2-9
2828
6
—ab+7n-5ab2ab+19a2b+10ab+9ab
5
7a+6a-6a5m+2d+8m-4d
2a-8n+16a+9n+20a+12n6mn-3mn-11mn-mn
5x2y+6y2z+19x2y-9y2z4n-3n2-7n-19n2-9
6775
—z-—y+—y+—z10n2+6pq-2n2-5
5656
1
—xy-9t-7xy3pq+11x2y+14pq+23pq
8
7e+3e+9e9m-6c-3m-5c
2b+3c-18b+7c-11b+16c3mn+4mn-13mn-mn
15x2y+8b2c+13x2y-2b2c8t+5t2-3t+14t2-6
1675
—z-—n+—n-—z15t2+7ab-2t2-6
5757
6
—xy-3z+9xy6xy+17x2y+18xy+18xy
7
8d-7d+6d4t+8a-4t-7a
4a+8c-17a-11c+12a+18c6ab-11ab-18ab-ab
26a2b-5b2c+13a2b+4b2c3x+7x2-5x+14x2-4
1575
—x-—t+—t+—x8n2-4mn+4n2-9
4646
5
—ab-8x-3ab3pq-5a2b+14pq-6pq
6