七年级数学上册合并同类项练习题精编311.docx
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七年级数学上册合并同类项练习题精编311
3(ab+4a)-(3a-9b)12(abc+6a)+7(5a+3abc)
5(xy+9z)-(-xy+4z)-9(pq-pr)+(4pq+pr)
-3a+(9a+9)2a+(5a+9d)+(9d-9a)
-5(5n+9)+8n7+(4x+7)-(3x-6)
5(-ab-2a)+(6a-4b)17(abc-5a)+5(8a-6abc)
8(xy+8z)-(-xy-3z)-8(pq-pr)-(9pq+pr)
-7a-(6a+4)9a-(4a-8s)-(7s+3a)
-5(4a+7)-3a3+(2x-5)-(5x+5)
2(-ab+9a)+(6a-4b)19(abc+5a)-9(2a-4abc)
6(xy-9z)-(-xy-2z)-4(pq+pr)-(6pq-pr)
9x+(4x-5)7x-(8x+6s)+(2s+7x)
-9(9n+9)-7n5-(3y-5)-(9y-6)
6(ab-2a)+(2a+6b)14(abc+3a)-9(8a+9abc)
8(xy+7z)-(-xy-3z)-9(pq-pr)+(8pq-pr)
-4n+(2n-5)8n-(7n+7d)+(5d+3n)
-7(5s+8)+5s1+(7a-2)-(9a+3)
4(-ab+8a)-(5a-6b)19(abc-2a)-3(5a+8abc)
2(xy-3z)+(-xy+5z)-5(pq-pr)-(9pq+pr)
-3b-(5b-6)2b-(2b-4d)+(3d-b)
5(9a-5)-7a2+(3x+3)+(4x-4)
3(ab+4a)-(3a+2b)7(abc+6a)-4(4a-4abc)
8(xy-8z)-(-xy+6z)-9(pq-pr)+(5pq+pr)
8b+(2b-7)5b-(9b+8s)+(7s-2b)
9(9b+2)+5b8+(3a-10)-(7a+4)
9(-ab-8a)-(2a-7b)2(abc+5a)-2(5a-5abc)
8(xy-9z)+(-xy-2z)-6(pq-pr)+(6pq-pr)
-7x+(2x-5)2x+(2x-8q)+(2q+2x)
6(4m+10)-3m8-(3a+3)-(6a+3)
3(-ab+9a)-(2a-7b)4(abc-7a)-6(5a+2abc)
6(xy+9z)+(-xy+2z)-8(pq+pr)-(7pq+pr)
-4n+(5n+3)5n-(9n+9z)+(7z-n)
2(2t-1)-4t9-(5y-5)-(2y+1)
7(ab-6a)+(9a+7b)10(abc-4a)-6(6a-9abc)
7(xy-6z)+(-xy-8z)-9(pq-pr)+(9pq-pr)
-9a+(5a+4)a-(7a+7p)+(5p-6a)
-9(6n-6)+8n7-(5n-10)-(2n-7)
9(ab-2a)+(6a+4b)5(abc-6a)+3(2a-9abc)
5(xy-6z)-(-xy+8z)-5(pq-pr)+(8pq-pr)
-9x-(7x+1)9x-(3x-9s)+(7s-x)
-5(4m-4)+6m8-(9a-4)-(2a-6)
4(ab+5a)+(8a+2b)9(abc-3a)+9(6a-5abc)
7(xy+7z)+(-xy+9z)-8(pq+pr)+(3pq-pr)
-2x+(6x+2)8x-(3x-9z)-(8z+5x)
-8(7b-10)+2b3-(6y+7)+(8y-7)
6(ab+5a)-(3a-4b)15(abc+7a)+5(3a-4abc)
4(xy+8z)-(-xy+5z)-7(pq-pr)-(5pq+pr)
9m+(7m+2)m-(8m-5p)+(3p+m)
4(8n-2)+4n1-(4y-10)-(2y-2)
5(-ab-4a)+(9a-8b)5(abc+8a)+8(4a-5abc)
2(xy+7z)-(-xy-8z)-5(pq+pr)+(7pq+pr)
-5n+(3n+5)n+(6n-4d)-(6d-6n)
2(9n-3)+2n1-(8m+6)-(5m-9)
3(ab+2a)-(4a-9b)19(abc-9a)-4(3a+4abc)
2(xy-2z)+(-xy+5z)-2(pq-pr)+(4pq-pr)
-8x+(2x+3)x+(3x-3c)+(3c+7x)
6(3s+4)-8s10+(9x-7)-(4x-5)
8(-ab+2a)+(2a-9b)19(abc+6a)+2(5a+2abc)
7(xy-5z)+(-xy+6z)-7(pq+pr)+(2pq+pr)
5a+(3a-8)7a+(4a-5p)-(2p-2a)
-8(9t+6)+5t3-(7y+4)+(9y+7)
2(ab+6a)+(9a-5b)13(abc+7a)+5(6a+6abc)
5(xy-3z)+(-xy-5z)-7(pq-pr)+(3pq-pr)
-5b-(8b+3)b+(9b+4c)+(3c+7b)
6(3n-2)-7n1-(6n-4)-(9n+7)
7(-ab+8a)-(5a-3b)17(abc-9a)+3(9a+9abc)
7(xy-5z)+(-xy-8z)-2(pq+pr)+(3pq-pr)
-9a+(7a+1)a+(3a+3s)-(9s-a)
-6(5b-10)+3b9-(6a-6)-(6a-9)
6(-ab-6a)-(2a+7b)10(abc+5a)+9(9a-5abc)
2(xy-9z)-(-xy-3z)-8(pq-pr)+(7pq+pr)
-6m+(8m-4)5m+(2m+7p)-(4p+8m)
-7(5t-7)+4t6-(2x+3)-(6x+6)
7(-ab+2a)+(5a+6b)17(abc+6a)+2(9a-7abc)
9(xy-4z)-(-xy+2z)-8(pq+pr)-(4pq-pr)
7a+(8a+4)5a-(2a-7s)+(2s+a)