七年级数学上册合并同类项练习题精编87.docx
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七年级数学上册合并同类项练习题精编87
7(ab+8a)-(6a-2b)11(abc-2a)+4(7a+9abc)
6(xy+2z)+(-xy-9z)-4(pq-pr)+(2pq-pr)
-6b-(7b+1)3b-(6b-3p)-(7p-b)
7(5n+7)+8n3-(4m+9)-(3m+8)
4(ab-6a)+(8a-4b)19(abc+8a)+6(8a-8abc)
3(xy+6z)-(-xy-7z)-7(pq-pr)+(2pq-pr)
-4n-(4n-5)n-(3n+5p)+(5p-n)
6(6a-2)+8a10+(7m-3)+(8m-4)
2(-ab+7a)+(8a-8b)11(abc-9a)-3(9a-5abc)
5(xy+3z)-(-xy+7z)-7(pq-pr)-(2pq+pr)
6b-(4b+2)2b+(7b+9q)-(3q-7b)
2(4m+2)+3m2+(5a-7)+(3a+10)
5(ab+9a)+(4a-5b)6(abc+4a)+3(3a-5abc)
8(xy-8z)-(-xy+2z)-6(pq-pr)+(8pq-pr)
6x-(5x-5)2x-(8x-5s)+(4s-7x)
4(9m-9)+3m5+(4x+4)+(3x-7)
8(ab-2a)+(2a+7b)16(abc-8a)-4(9a-3abc)
3(xy-9z)+(-xy-2z)-9(pq-pr)+(9pq-pr)
-6y-(2y+7)y+(6y+5q)+(8q-y)
-9(3m+6)-5m5+(6a+1)-(8a-7)
8(-ab-6a)+(2a+3b)3(abc-2a)+6(6a-3abc)
8(xy-8z)-(-xy+5z)-3(pq-pr)-(9pq+pr)
-7y+(8y+1)2y+(9y+5p)+(5p+y)
6(5m-8)-6m6+(5b-6)+(4b+2)
3(-ab-8a)+(9a+7b)3(abc-6a)+3(5a+8abc)
7(xy+7z)+(-xy-2z)-4(pq-pr)-(9pq-pr)
-2m+(6m+7)m+(2m-7s)+(8s-2m)
-2(8n-8)+9n2+(7b+9)+(7b-9)
5(ab-7a)-(7a+9b)11(abc+5a)+4(9a+2abc)
6(xy+2z)-(-xy+2z)-6(pq+pr)+(3pq+pr)
9m+(7m-1)m-(2m+7s)-(9s-m)
-5(6m-5)+3m3-(9m+3)-(6m+7)
7(-ab+7a)+(4a-6b)17(abc-2a)-5(4a+4abc)
9(xy+7z)+(-xy-7z)-9(pq-pr)-(4pq-pr)
2n-(3n+8)4n-(3n+4d)-(2d-3n)
-8(8m+10)-7m7+(4a-5)-(6a+4)
7(-ab+7a)-(4a-2b)12(abc-6a)+3(7a+7abc)
3(xy-9z)-(-xy+7z)-9(pq+pr)-(9pq-pr)
-4b-(4b-4)2b-(2b-5c)+(4c+b)
6(3a-3)+3a4-(4n+3)-(9n-3)
9(ab+9a)+(7a-4b)12(abc-5a)+4(4a+8abc)
4(xy+8z)+(-xy+3z)-3(pq-pr)+(4pq-pr)
3b-(5b+5)b+(5b-4c)-(8c+8b)
6(2b-4)-6b1+(4y+7)-(3y-10)
9(ab+3a)+(6a-4b)7(abc-6a)-5(9a-9abc)
7(xy+5z)-(-xy+5z)-4(pq+pr)+(2pq-pr)
-7m-(7m+4)6m-(8m+5p)+(6p-7m)
9(4m-1)+3m10+(6a-4)-(9a-2)
5(-ab+4a)-(4a+4b)15(abc+5a)+7(2a-5abc)
2(xy-5z)-(-xy+7z)-2(pq-pr)+(5pq+pr)
2x+(7x-3)4x-(7x+6p)+(7p+x)
-9(9s-1)-2s1+(5y+1)+(2y-6)
8(ab-5a)+(6a-2b)8(abc-8a)-2(8a-5abc)
7(xy-7z)+(-xy+2z)-3(pq+pr)+(8pq-pr)
-5y+(5y-3)7y+(9y-7s)-(7s+6y)
7(4t+3)+6t5+(5m-10)-(7m+10)
9(ab+8a)-(6a-4b)20(abc-6a)-2(2a-3abc)
6(xy-6z)+(-xy+4z)-4(pq+pr)-(9pq+pr)
-7x-(5x-1)x-(7x+2p)+(3p+7x)
6(9n+5)-5n6+(4a-6)+(5a-7)
5(ab-7a)+(6a-4b)16(abc-6a)+9(5a-5abc)
8(xy-2z)+(-xy-7z)-2(pq-pr)-(6pq+pr)
-4a-(9a+7)8a-(8a-6c)+(9c+a)
-4(2t-7)+4t6+(4a+8)-(9a-10)
2(-ab-8a)+(6a-5b)12(abc+8a)+5(9a+6abc)
7(xy+7z)-(-xy-4z)-2(pq+pr)-(6pq-pr)
-6a-(4a-4)a+(8a+6q)+(2q-a)
-9(3s-1)+6s8-(6x-2)-(9x+5)
3(-ab-8a)-(3a+6b)10(abc-7a)+8(7a-9abc)
8(xy+4z)-(-xy-3z)-5(pq-pr)+(2pq-pr)
-3a+(7a-7)a-(7a+8c)-(8c-6a)
-2(7s+2)-3s4-(5b+1)-(6b-5)
3(ab-5a)-(7a-8b)4(abc-5a)+6(5a+9abc)
7(xy-2z)-(-xy-8z)-8(pq+pr)+(7pq+pr)
2n+(5n-5)6n-(4n-6s)+(3s-n)