初一数学上册合并同类项专项练习题17.docx
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初一数学上册合并同类项专项练习题17.docx
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初一数学上册合并同类项专项练习题17
4b-4b-4b9x+8d+2x-4d
4b-7n+14b+17n-15b+11n3ab+6ab+13ab-ab
19x2y+2b2c-24x2y-9b2c9y-8y2-4y-13y2+8
3175
—m-—t+—t+—m19x2+9mn-3x2-5
4747
1
—mn-4z+2mn7mn-18a2b-13mn-9mn
4
8c+4c+4c8z+7f+6z-6f
3a-6c-13a+20c-18a+17c4ab+13ab+18ab+ab
11a2b+7b2c-7a2b-8b2c7t+9t2+4t-16t2+7
1175
—z+—n+—n-—z2t2-6xy+2t2+8
5656
2
—mn-4t-4mn2ab+3a2b+13ab-6ab
3
7c-4c+4c9z+3f+8z-7f
2m+8c+6m-17c+10m-19c6pq-17pq+11pq+pq
9a2b-2b2c-12a2b+5b2c7n-5n2+3n+5n2+8
1175
—m+—t-—t+—m19n2-9mn-9n2-7
4747
1
—mn+2y+3mn6mn-18a2b+2mn-29mn
2
4a-7a+5a7y+9d-5y+5d
7a+8c-14a+2c+20a+18c8ab+9ab-10ab+ab
27x2y-8y2z+4x2y-7y2z8m-3m2-6m-16m2+9
6975
—m-—n-—n-—m8m2+6ab-7m2+4
5858
1
—xy-8x+8xy9ab+10x2y+13ab-7ab
6
9b+2b-8b8z+8e+3z+2e
6a+6c+11a-5c+20a+16c7xy-6xy+20xy-xy
15x2y+2y2z-23x2y-2y2z3t+5t2+6t-8t2+3
4975
—z+—t+—t+—z7t2-8xy-5t2-7
3838
9
—xy+6y-7xy9mn+5a2b-20mn+22mn
8
9e-8e+7e2x+9e-3x-9e
7a+4n-7a+16n-20a-18n5mn-15mn+20mn-mn
3a2b-8y2z-15a2b+6y2z5y+3y2-8y-19y2-4
1175
—z+—n-—n-—z20m2+7xy-5m2+1
4646
1
—xy-2x-9xy4xy+15a2b+4xy+11xy
2
6b+5b-7b10m-5a-5m-5a
4m+9c-9m+15c+19m-16c4xy+4xy-16xy-xy
25x2y-8y2z+28x2y+2y2z6m-7m2-5m+14m2+3
4175
—x+—n+—n-—x17y2-6mn-5y2+9
5858
1
—ab+3y-7ab6ab-9a2b-20ab+19ab
6
6c-4c+3c2x-7f-7x-10f
8a+8n+18a+2n+17a+20n5mn-15mn-18mn-mn
13x2y+6b2c-21x2y-2b2c8t-9t2+8t-19t2-4
1175
—m+—n+—n-—m4m2+8ab-6m2+7
4646
1
—mn+6y-2mn6mn-11x2y+15mn+27mn
6
8b-4b+6b6z+9b-7z-10b
8a-8d+16a+7d+18a+10d7mn-5mn+17mn-mn
4a2b-3y2z+25a2b+6y2z8x-7x2+2x-2x2-2
5975
—m+—n+—n-—m11x2+5xy-6x2-4
4848
1
—pq+9x+3pq5mn-10x2y+6mn+23mn
2
8d-2d-4d2t+9c-6t+9c
3m+5c+14m+5c+18m+10c4xy+12xy+14xy+xy
6a2b-3y2z+7a2b-8y2z4y+2y2+7y-16y2+4
5175
—z+—n+—n+—z7y2-8ab+8y2+9
4747
1
—xy+5z+9xy3pq+9a2b-10pq+24pq
6
3c+8c+4c7y+9d+4y+8d
4m-8d-13m+6d-19m-10d5ab+6ab+11ab+ab
4a2b-4b2c+16a2b-6b2c2n-8n2+8n-15n2-6
1775
—m+—t+—t+—m20y2-2pq+3y2+7
5858
1
—mn+9m-3mn6mn+9x2y+9mn+14mn
2
4a-4a-4a2z+5d-4z+9d
7b+5d-10b+18d-16b-11d6ab+19ab-12ab-ab
3x2y+2b2c+24x2y+2b2c4n-9n2+3n-5n2-6
2675
—z-—n-—n-—z7z2+3ab+6z2-5
3737
6
—pq+6n-2pq5ab+17a2b-6ab+6ab
7
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- 初一 数学 上册 合并 同类项 专项 练习题 17