初一数学上册合并同类项专项练习题15.docx
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初一数学上册合并同类项专项练习题15.docx
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初一数学上册合并同类项专项练习题15
4e-5e-6e9n-3f+7n-3f
5m-7n-14m-15n+15m+12n6pq-6pq+16pq-pq
28x2y+8b2c-5x2y-7b2c6m-6m2+3m-16m2+4
5975
—z-—y+—y+—z14x2+6mn-2x2-5
4848
1
—ab-6y+8ab5pq-19a2b+18pq+7pq
3
9c-9c-2c4t+9a+7t+10a
7m-4n-14m-19n-20m-14n8ab+19ab+15ab+ab
18a2b+8y2z-28a2b-2y2z3x-5x2-8x+20x2+7
3875
—m-—y+—y-—m14y2-7xy+7y2+1
2727
1
—pq+9y+3pq8mn-8x2y+16mn-18mn
3
8a+5a+5a9m+2e-7m+6e
6a-3c+7a-16c-20a+12c5xy+18xy+11xy-xy
23x2y+5b2c+19x2y-5b2c5x-9x2+5x+12x2+6
1775
—x-—t+—t+—x6x2-2pq-6x2+7
2828
7
—pq+8x+4pq8xy-17a2b+5xy-27xy
6
8a-8a-7a10m+6b+6m-8b
5a+9d+5a-19d+16a-19d4mn-18mn-15mn-mn
19x2y+5y2z-22x2y-5y2z5y+8y2-4y+8y2+6
5675
—z+—t+—t+—z9m2-3ab+5m2-8
4747
1
—mn+8t+5mn3xy+10x2y-5xy-7xy
4
7f+5f-5f9y-8f-5y-9f
3m-8d+14m+12d+15m+12d9xy+8xy+17xy-xy
16a2b-6b2c+19a2b+8b2c9t+7t2+9t+11t2+6
4175
—m-—n-—n-—m6x2+8xy+6x2+3
3737
9
—mn-7x+2mn7pq+14x2y-3pq+21pq
8
2b+3b+8b5x-6a-5x+2a
4m-2c-10m+6c-19m+11c7pq+10pq-18pq+pq
29a2b+3y2z+26a2b-5y2z3n-7n2+5n-13n2-9
4175
—m+—y-—y+—m6y2-7ab+2y2+3
5656
1
—xy-9z+7xy3ab-3x2y-2ab-18ab
6
9b+6b-4b4n+3c-2n+5c
6a+8c+13a+14c-10a-14c2xy-20xy+20xy+xy
16a2b-2b2c-21a2b+4b2c3n-2n2+7n+2n2-3
3175
—z+—t-—t+—z18n2+4ab-9n2-4
4848
5
—ab+2n-5ab7ab+3a2b-10ab-20ab
6
7f-4f-5f7t-5f-5t+7f
8m-3d-16m+18d-16m+18d7ab+5ab-20ab-ab
25x2y-9b2c-10x2y-2b2c8x+5x2-7x+3x2+7
1175
—m+—t-—t+—m13m2-7mn+3m2+7
2626
2
—ab+5z+3ab6mn-16x2y+10mn-30mn
3
9f-7f-5f7z-4e+6z+9e
5m-4n+18m+14n+11m+11n6xy+11xy+18xy-xy
14a2b-7b2c-5a2b+2b2c5t-2t2-6t-2t2+5
1175
—m+—y+—y+—m14m2-5ab-9m2-7
4848
9
—xy-4t-9xy8mn+5a2b-19mn-9mn
8
6f+9f+2f10m+2c-9m-7c
6a-8c+17a+4c-15a-14c9ab+12ab-12ab-ab
2x2y+9y2z+6x2y+2y2z2t-9t2+8t+14t2+9
1175
—m+—n+—n+—m2x2+9mn+4x2+9
3636
5
—mn+9x-8mn6mn+12a2b-16mn+14mn
4
6e+8e+9e4t+3d+2t-2d
3b+8n-6b-8n+13b-13n7pq-7pq+15pq-pq
15a2b-6y2z-21a2b+8y2z5m-2m2-8m+6m2+8
1575
—x+—t+—t+—x19n2+3pq+8n2-7
5656
1
—mn-2m+7mn6mn+17a2b-16mn+23mn
2
6d+8d+4d7m-8e-5m+9e
9b+5n-18b-16n+12b+20n3ab+14ab+15ab-ab
24a2b-7b2c-12a2b+7b2c2x-6x2-9x+13x2+5
4975
—m+—y+—y-—m4t2-9xy+9t2+4
3838
1
—pq-5m-8pq7ab+15a2b+7ab-2ab
6
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- 初一 数学 上册 合并 同类项 专项 练习题 15