七年级数学上册合并同类项练习题精编397.docx
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七年级数学上册合并同类项练习题精编397
-5m-(3m-9)7m-(7m-8s)+(7s-5m)
-5(5n+2)-3n1+(9a-10)-(6a+3)
5(-ab-7a)-(5a-2b)14(abc-7a)-2(9a-8abc)
9(xy-8z)+(-xy-2z)-2(pq-pr)-(6pq-pr)
5x+(7x-6)3x-(8x-9z)+(4z+x)
8(3s+6)-2s5+(4n-2)-(3n+2)
2(-ab-8a)+(9a-3b)2(abc+7a)-9(2a+8abc)
3(xy-8z)+(-xy+3z)-8(pq-pr)+(2pq+pr)
4n+(8n-9)n+(2n-3p)-(4p+n)
6(2a+3)+7a9+(2n+1)+(6n-5)
4(ab+7a)+(3a-4b)16(abc+8a)-8(9a+4abc)
9(xy+7z)+(-xy+6z)-6(pq-pr)-(7pq-pr)
-4x-(2x+1)2x-(6x-8p)+(6p+x)
-4(6n+3)+6n8+(9x+2)-(9x-2)
4(ab-4a)-(2a+5b)4(abc-8a)+9(4a-5abc)
6(xy-8z)+(-xy-8z)-7(pq+pr)+(9pq-pr)
5b-(9b-3)b+(6b+7d)+(3d-b)
-7(2m+8)-2m1+(8b+5)+(8b+10)
3(-ab-7a)+(9a-6b)18(abc+2a)+9(7a-3abc)
6(xy+9z)-(-xy-9z)-7(pq+pr)-(4pq+pr)
-6y+(3y-5)y-(7y-6c)+(2c+8y)
-9(8t-10)-5t6+(7a-2)-(4a-4)
6(ab+2a)-(3a-9b)6(abc-4a)-4(6a-6abc)
6(xy-4z)+(-xy+9z)-6(pq+pr)+(2pq-pr)
7x+(7x+7)x+(3x+5c)+(5c-x)
9(9a+6)-2a3-(7y-4)-(2y-8)
5(-ab-8a)-(7a+5b)10(abc-8a)+9(3a-8abc)
9(xy+6z)+(-xy+6z)-2(pq+pr)-(4pq+pr)
-6a-(9a-6)a-(3a-4c)-(4c+a)
5(5t-9)-8t8+(2m-4)+(9m+1)
6(-ab-3a)-(8a-6b)12(abc-2a)+5(4a+7abc)
4(xy-3z)-(-xy-2z)-3(pq-pr)+(6pq+pr)
-4x+(5x-3)x+(4x+7c)+(2c-6x)
5(8n+8)-2n3+(6n-6)+(2n+10)
9(ab-3a)-(3a+7b)2(abc-7a)+3(2a+3abc)
8(xy-2z)+(-xy+5z)-8(pq+pr)+(7pq+pr)
5n-(4n+9)4n+(8n-6z)-(6z-n)
-7(6t+1)+4t4-(4x+4)-(8x+10)
7(ab-4a)+(8a-5b)13(abc-7a)-6(4a+7abc)
2(xy-5z)-(-xy-7z)-2(pq-pr)-(6pq-pr)
3m-(3m+9)m+(2m-7q)+(2q-4m)
4(6t-6)+4t7-(3b+4)-(2b+9)
8(-ab+3a)+(5a-5b)17(abc-4a)-8(7a+3abc)
8(xy+4z)+(-xy+5z)-9(pq+pr)-(4pq-pr)
2b-(2b+7)7b-(9b-8c)-(9c+7b)
-9(2t+8)+4t3-(4b+10)+(2b-4)
2(-ab+9a)+(4a-7b)19(abc+5a)-4(9a+2abc)
7(xy+2z)-(-xy+6z)-6(pq+pr)+(6pq-pr)
-5x+(2x-7)x-(4x+6q)+(5q+2x)
-7(2t-2)+2t5-(5x+2)-(6x-3)
9(-ab-9a)-(7a-3b)2(abc+8a)+3(4a+5abc)
9(xy-5z)+(-xy+5z)-7(pq-pr)+(5pq+pr)
-6n+(7n+8)n-(2n-8s)-(7s+n)
6(6n+9)+7n9-(2n+8)-(6n+3)
7(-ab-4a)+(3a+5b)8(abc-3a)+3(2a-4abc)
2(xy+8z)+(-xy-5z)-2(pq-pr)+(2pq-pr)
5b+(9b-4)3b+(5b+6c)-(9c+7b)
7(2m+7)-8m1-(2y-3)-(9y-6)
6(-ab+6a)+(4a-3b)13(abc+5a)-4(3a-9abc)
4(xy+6z)-(-xy+2z)-4(pq-pr)+(8pq-pr)
5m+(9m+3)m+(3m-4c)+(5c+6m)
9(9m-6)-9m8-(7m-3)-(9m-7)
2(-ab+3a)-(7a-8b)16(abc+2a)-3(7a+6abc)
6(xy+7z)+(-xy-6z)-6(pq-pr)-(7pq+pr)
5b-(4b+3)b-(6b-6c)-(2c-b)
7(9t-6)-5t8-(5n-8)+(5n-5)
7(-ab+3a)+(3a-8b)19(abc+9a)-7(8a-2abc)
9(xy+8z)+(-xy+6z)-6(pq-pr)-(3pq-pr)
9a+(2a+5)a+(9a-4z)+(8z+7a)
-5(9s-10)+5s7-(3y-8)+(3y+4)
4(ab+8a)+(4a+9b)6(abc-3a)-9(2a+2abc)
9(xy+2z)+(-xy+6z)-6(pq+pr)+(4pq-pr)
2b-(2b-8)5b-(3b+9q)-(6q-4b)
8(2n-9)-6n10+(4b-9)-(2b-1)
5(-ab-7a)-(7a+7b)18(abc+2a)-3(3a-8abc)