合并同类项综合练习题139.docx
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合并同类项综合练习题139
8e+7e+5e6n-4d+7n+9d
7m+2n+17m+7n-16m-10n4xy-19xy+14xy+xy
25a2b+3y2z-15a2b+8y2z5t+6t2+6t+14t2+2
4775
—m+—y-—y+—m9z2-4mn+7z2-2
3636
1
—ab-4z-7ab2mn+4x2y-20mn+19mn
2
5d-6d+3d6t-9b-7t-8b
4a-2c+15a+19c-16a-18c7xy+5xy-16xy-xy
20x2y-5y2z+27x2y+4y2z7y-6y2+9y-13y2-5
1975
—m+—t-—t-—m7m2+8mn-9m2+4
5858
1
—pq-5n+9pq6ab-10x2y+17ab-6ab
5
6e-4e-5e9y+4b-5y-8b
8a-8n+8a-13n+14a-11n6pq-17pq-20pq+pq
25x2y+2b2c+3x2y-8b2c8z-3z2+4z+10z2+9
1775
—m+—t-—t+—m6y2-5xy+3y2-6
2626
7
—mn-9n-7mn9xy-12x2y-4xy+21xy
8
2f+4f+3f10t-6f+7t+2f
6m+3c+6m-11c+13m+10c8xy+3xy+16xy-xy
9a2b-8y2z-2a2b+6y2z7y-6y2+2y+3y2+5
1675
—z+—t-—t-—z19n2+4ab+4n2-3
2727
4
—mn-7z-6mn4mn-15a2b+19mn-21mn
3
2e+8e+4e6n+9c+5n-2c
9m+3n-3m+16n-15m-10n4mn+13mn+17mn+mn
14x2y-5b2c-14x2y+6b2c5n-2n2+9n+16n2+7
1875
—x-—y+—y+—x5n2-4xy-6n2+1
2727
1
—ab-6m-8ab4mn-11x2y+19mn+18mn
6
2a-5a-3a9t-2b+3t+9b
9a+5n-4a+4n-12a-12n5ab-3ab+18ab+ab
11x2y-4y2z-27x2y-5y2z4t+4t2-8t+12t2-6
4675
—m-—n+—n-—m16n2-5xy+6n2+5
3737
9
—ab-5z-7ab9pq-6x2y+15pq-9pq
8
4d-6d+7d6t+4f-4t-8f
6a+6n+10a+9n-14a+17n5pq-6pq-18pq+pq
25x2y-2y2z-10x2y+7y2z7x+2x2-5x-16x2+3
3175
—x+—n-—n+—x18n2-9pq-2n2+2
2727
1
—pq+8z-2pq7xy+18a2b-20xy+18xy
4
7a+9a-3a10m+8c-6m+5c
8m-7n+10m-9n+13m+14n6pq+2pq-18pq+pq
21a2b-7b2c+2a2b-3b2c2m+4m2-4m-8m2+3
1175
—m+—n-—n+—m7n2-8xy-7n2+1
5858
5
—ab-7m-4ab7pq-4x2y-19pq+23pq
4
3e-6e-8e6t+3e-5t+2e
5b+6d-18b+16d+11b+18d3mn-7mn+16mn-mn
10a2b-7y2z+3a2b-3y2z4x-9x2+2x-20x2-3
5675
—m+—n-—n+—m20z2-8pq-4z2+6
4747
1
—pq+5n+3pq6pq+5x2y+7pq-12pq
6
8e-4e+5e9n-3b-9n-3b
8b+3c+20b-14c+10b+16c2ab-2ab+18ab-ab
7a2b+6y2z-23a2b+7y2z7z+5z2+2z-16z2+9
1175
—x+—y-—y-—x10m2+5ab-3m2+9
5656
1
—pq-3n-8pq5mn-14a2b+4mn-6mn
5