初一数学上册合并同类项专项练习题18.docx
《初一数学上册合并同类项专项练习题18.docx》由会员分享,可在线阅读,更多相关《初一数学上册合并同类项专项练习题18.docx(6页珍藏版)》请在冰点文库上搜索。
初一数学上册合并同类项专项练习题18
9a-9a+4a7y+8a+9y-9a
3a+9n+6a+15n+13a+11n3mn+5mn-17mn-mn
20a2b-6b2c+24a2b-5b2c7n-2n2-8n-19n2+7
2675
—m+—t+—t-—m12z2-9mn-3z2+5
3737
9
—mn-2m+8mn3pq-11a2b+11pq+14pq
8
9b+8b-7b7x-2e-5x-10e
6m-8n-7m-5n-10m+12n7mn+6mn+19mn+mn
16a2b-7b2c-18a2b-8b2c5y-5y2-3y+5y2-8
4175
—z-—y-—y+—z8x2-7xy-2x2+1
3737
1
—ab-4y+6ab2pq+19a2b+10pq-4pq
3
7e+5e+9e4m+5c-5m+10c
4m+2n-15m+5n-14m-18n7ab+15ab+14ab+ab
4a2b-2y2z-13a2b+8y2z5x-4x2-6x-18x2-2
6975
—z+—t+—t-—z4n2+6xy-4n2-3
5858
1
—ab-4n-7ab4xy-9a2b-14xy+10xy
3
6c-4c-6c4n-3d-2n-5d
9b-3c-18b+15c-10b-20c4ab+11ab-17ab+ab
28x2y-2b2c+5x2y+7b2c5m+4m2+8m-2m2+9
1175
—z-—n-—n-—z9t2+4mn-5t2-9
4747
1
—ab+5x-2ab8mn+18a2b+20mn+21mn
5
5f+4f-6f10n+8f+6n-9f
5b+7n-13b+13n+14b+11n2pq+5pq-13pq-pq
3a2b-8y2z+13a2b-3y2z5n-4n2+2n+8n2-8
4575
—m-—t+—t-—m6z2-2xy+4z2-6
3636
8
—xy+9x-3xy4pq+19x2y+5pq+26pq
7
3b+8b+4b8n+4a+9n+8a
5a+3c-14a-14c-17a-13c5pq-6pq-10pq+pq
7x2y+3y2z+12x2y+5y2z2z+3z2-5z+7z2+6
1175
—m-—n-—n+—m16y2+7xy-6y2+9
5656
1
—xy-3z-5xy8xy-13x2y-8xy-15xy
2
4a-9a+9a9x+5d+9x+4d
4m-3c+11m+7c+15m+17c6pq+4pq-11pq+pq
20a2b-8b2c-27a2b+8b2c8m-7m2+8m-13m2-5
1175
—m+—n-—n-—m15x2+4pq+9x2-5
4646
1
—pq+5y-8pq9pq+16a2b-8pq+6pq
7
6e-8e+6e9t-5d+6t-5d
9m-4d-17m+5d-15m+17d3ab-10ab+15ab+ab
12x2y+5y2z+24x2y+5y2z8n-9n2-2n+12n2-1
1175
—x-—n-—n+—x18t2-8ab+4t2-5
3636
1
—ab-8m-7ab9xy-8x2y+4xy+15xy
4
4c+3c-6c5y-6e+9y-3e
6b-5d-16b+16d-17b-11d5ab+10ab+15ab-ab
27x2y+2y2z+5x2y-3y2z4x+6x2-6x+5x2-9
1175
—m+—t+—t-—m10m2+7xy+2m2+5
2626
1
—ab+6x-9ab2pq+12x2y+12pq+19pq
4
8b-4b+4b8z-9f+3z-3f
4m-4c+16m-15c+18m-12c5pq+6pq-10pq-pq
2x2y-4y2z-4x2y-8y2z6z-3z2-6z+4z2-7
3175
—x-—y+—y-—x13y2+2mn+4y2+6
4848
5
—xy+4x-4xy3ab-12a2b+18ab+10ab
4
4f-4f+6f6x-6a+7x-6a
4m-5d+11m+8d-10m-16d6xy-13xy-18xy-xy
8x2y-2b2c+25x2y-7b2c5z+8z2-7z+15z2+2
2175
—m-—t-—t+—m14y2+4xy-6y2+6
3636
1
—pq+7x+9pq8mn+6a2b+17mn+9mn
8
8c-8c+6c10y-6a+3y+7a
2b-2d+9b-6d-19b+18d6pq-4pq-18pq-pq
5a2b+4b2c+27a2b+4b2c8x+5x2+4x+14x2-2
5175
—m+—t+—t+—m17z2-8ab-2z2-1
4848
4
—xy-7n-8xy4pq+19a2b-3pq+3pq
3