初一数学上册合并同类项专项练习题65.docx
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初一数学上册合并同类项专项练习题65.docx
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初一数学上册合并同类项专项练习题65
6d+9d+3d7z-4d-5z-6d
4m+4c+14m+13c+12m+16c7ab+6ab-14ab+ab
26a2b-6y2z+30a2b+5y2z2z-3z2-2z+14z2+2
4575
—z-—y-—y-—z18m2+9mn+4m2-7
3636
1
—ab-3y+9ab6ab+8a2b+20ab-21ab
6
6e+4e+7e7t+3f+9t-9f
9b+5c+15b-5c-12b-11c7xy+11xy-20xy+xy
11a2b-5y2z-9a2b+9y2z7t+6t2+9t-18t2+5
2175
—z-—n+—n+—z3m2-4mn+5m2-2
3838
1
—pq+5n+8pq2xy+3x2y+12xy-8xy
3
8e+9e-2e6t-9d-5t-3d
9b-3n+3b+18n-12b-20n5ab+5ab-10ab+ab
20x2y-2b2c-18x2y-5b2c6m-6m2-5m-7m2+6
3175
—x-—n+—n-—x15t2-7mn-5t2+3
2727
1
—mn+5m-8mn5ab-17a2b-3ab+20ab
7
8d+7d+3d5x+6e+9x-7e
8b-7n+19b+15n+16b+10n8ab+14ab+12ab-ab
22a2b-9y2z+16a2b-9y2z4n-5n2-7n-16n2+7
2575
—z-—t-—t+—z2m2-2ab-4m2+1
3636
5
—ab-3y-4ab8ab+4x2y+18ab+11ab
6
6f+7f-7f2m+5d-8m-10d
2a-8d-14a-20d-13a+15d8ab-20ab+11ab-ab
26a2b+3b2c+20a2b-3b2c9n+6n2-4n-13n2+7
5175
—x+—y-—y+—x11z2-4mn+6z2-2
4646
1
—xy+5t+8xy9xy-9a2b+15xy+11xy
2
2a-9a-3a4t+4b-3t-2b
3a-2d-10a+14d+18a+11d9mn+7mn-20mn+mn
8x2y-8y2z+10x2y+3y2z8y+3y2+9y-17y2+9
1775
—x-—y+—y-—x20y2-2mn+8y2+4
3838
1
—mn+4y+6mn9mn-13a2b+3mn-5mn
8
9f+6f-5f6x-2c+8x+7c
3b+5n+16b-11n+11b+16n6ab-20ab+13ab-ab
14x2y+7y2z+21x2y-9y2z6x+5x2+5x+13x2-2
3175
—x+—n-—n+—x4m2+2xy-4m2+6
2828
7
—ab+3m+9ab9ab+20a2b+18ab+30ab
6
9b+9b+3b9m+5f+5m+5f
4b-4d-12b-15d+11b+14d3mn-8mn-10mn-mn
18a2b-2y2z+19a2b-5y2z9y-6y2+5y-5y2-9
1775
—z+—t+—t-—z15z2+3xy+7z2-5
2828
1
—ab-5z-5ab7xy+10x2y+20xy-22xy
3
8f+4f-3f8m+3a-8m+9a
4b-9d-6b-5d+17b+17d9mn-8mn+15mn+mn
10x2y-9b2c+17x2y+4b2c2x+9x2-5x-20x2+5
4175
—z+—y-—y-—z5x2+4xy-9x2+9
3737
2
—xy+6t-4xy4pq+5a2b-6pq-12pq
3
8f-4f+3f8t+4b+5t+6b
4m+2n-5m-9n+14m-20n5xy+12xy-18xy-xy
14x2y-5y2z-21x2y-2y2z6n-7n2-3n+12n2-5
1975
—x-—y-—y-—x14t2+4mn-9t2-1
2828
1
—xy+5m+7xy6ab-4x2y-6ab+23ab
6
5e-6e-8e8x-9b+8x+5b
5b+6n+14b+6n+11b-13n4pq-4pq-15pq+pq
8a2b-9b2c+29a2b+9b2c9x-7x2-8x-4x2+4
3175
—z-—y+—y+—z3y2+5pq-2y2+4
2828
1
—pq+3m+6pq2ab+16x2y-10ab+12ab
6
4f+4f+9f10x+4f-2x-3f
3a+3c+8a-14c-17a+16c2xy+12xy-15xy-xy
7a2b+2y2z+16a2b+5y2z4n-9n2-5n+10n2-4
6675
—z+—n+—n+—z15n2-9xy+2n2+8
5757
9
—xy+6y-3xy6xy-20a2b-3xy-9xy
8
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- 初一 数学 上册 合并 同类项 专项 练习题 65