合并同类项综合练习题13.docx
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合并同类项综合练习题13.docx
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合并同类项综合练习题13
9b+6b+2b9n+2c-2n-3c
3b+4c+2b-6c-13b-19c7mn-12mn+14mn+mn
20a2b+3b2c-30a2b+7b2c3y-4y2-7y-18y2-3
1175
—x+—t+—t+—x4z2+7mn-8z2-9
5656
7
—pq+2m-9pq3pq+10x2y+13pq-4pq
6
8b+2b-7b2n-9f-8n+6f
8b+3d+17b+19d-18b+13d9xy+20xy+12xy-xy
19a2b+3y2z+11a2b-6y2z6m+5m2-4m-18m2-6
4175
—m+—t+—t-—m2t2-9xy-3t2-5
3737
4
—mn-9n-6mn3ab-13a2b-3ab+3ab
3
6d+4d+6d10y-9c+2y-7c
4b-5c+5b-3c+11b-13c2pq+13pq+16pq-pq
29x2y-8y2z-6x2y+4y2z4n-7n2-2n-11n2-8
3175
—x+—n-—n+—x8y2+4ab-3y2-7
2727
9
—mn+5t-2mn3pq-11a2b-11pq+23pq
8
3e+6e+3e9z-9b+7z-2b
2m-6d+16m+15d+19m+13d3ab-9ab-13ab+ab
6x2y+2y2z+6x2y+8y2z2x-2x2-8x+8x2+1
2875
—m-—t-—t-—m17y2-7xy+7y2+7
3737
4
—xy-6n-7xy9pq+11a2b+15pq-18pq
5
2f+2f-9f3t-6c-3t-6c
6a+7c+4a+9c+16a-15c7pq-9pq+17pq-pq
29a2b-6b2c-21a2b-9b2c8m-5m2+6m+5m2+5
3575
—z-—y-—y-—z8z2+7xy+9z2-8
2626
7
—ab-7y-8ab2xy-4a2b-19xy-30xy
6
8d-6d-9d4m-6d-9m+7d
3a-6d+11a-18d+19a-12d8pq-3pq-18pq-pq
16a2b+7y2z-18a2b-7y2z5n-9n2+5n+19n2-6
3775
—z-—y+—y-—z5t2+7mn-2t2+9
2828
1
—pq-8m+8pq4xy+17a2b-17xy-8xy
7
6e-9e-4e9z+6c+7z-2c
9b+8d-11b+10d+18b+19d7ab+19ab+11ab-ab
5a2b+9y2z-16a2b+8y2z5z+9z2+6z-10z2-8
1875
—m+—t-—t+—m5x2-3xy-6x2-9
5757
1
—pq+5y+5pq7xy+8x2y+14xy+21xy
5
6b-3b-8b6y-3d-2y-8d
5a-2c+20a-10c+18a-16c7mn-14mn+17mn-mn
26x2y-7b2c-11x2y-6b2c9n-8n2+9n-2n2-2
4775
—m+—t-—t+—m15y2-7xy+8y2-8
5656
1
—xy+2t+6xy4ab+3a2b+3ab+24ab
5
2f+7f-2f9x-7e+8x-6e
2m+7n+20m+6n+13m+14n9ab-9ab+18ab+ab
23x2y+4y2z+30x2y-7y2z9n-7n2+9n+15n2-9
1175
—m+—n+—n-—m14t2+4ab-2t2+4
2727
1
—pq-5t-9pq3pq-5a2b+19pq+18pq
6
7d-8d-4d7z+7c-7z-4c
5a-5n-5a+11n+17a+20n5ab+20ab+13ab-ab
5a2b+9y2z+28a2b+7y2z5n+5n2+6n-19n2+6
1775
—m-—y-—y-—m11t2-3pq-8t2-8
5656
2
—ab+4x+8ab6pq+18x2y-12pq-28pq
3
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