七年级数学上册合并同类项练习题精编242.docx
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七年级数学上册合并同类项练习题精编242
8(xy-3z)+(-xy+3z)-5(pq+pr)-(4pq-pr)
8a-(4a-2)9a+(8a-9s)+(2s-4a)
4(8t+6)+7t8-(4n-6)-(7n-6)
9(-ab+9a)+(6a+4b)20(abc+8a)+4(2a+4abc)
8(xy+8z)-(-xy+3z)-7(pq+pr)-(8pq-pr)
2m-(3m-9)2m+(8m-6s)-(9s+7m)
-5(7a-1)+7a8-(5n+8)+(4n+1)
3(-ab-5a)+(2a+6b)18(abc-7a)-6(6a-9abc)
4(xy+9z)+(-xy+7z)-8(pq-pr)-(9pq-pr)
-4m+(3m+2)6m+(3m-5q)+(5q+6m)
-8(6b+1)+2b8+(5m+8)+(3m-4)
5(-ab-7a)-(6a-3b)14(abc+8a)-7(2a-8abc)
8(xy+7z)+(-xy+9z)-8(pq-pr)+(8pq-pr)
-9m-(9m+9)m-(4m-7d)-(6d+m)
-2(2t+9)-9t9-(2b+9)-(8b+9)
3(ab+5a)+(8a+9b)5(abc+5a)+5(3a-8abc)
5(xy+5z)+(-xy-2z)-4(pq-pr)-(8pq-pr)
6m+(2m-1)m+(6m+7p)+(4p+m)
3(6a+1)+7a8-(5b+7)+(8b+3)
8(ab+8a)-(2a+2b)17(abc-4a)+6(5a-3abc)
9(xy+2z)-(-xy+4z)-3(pq+pr)-(4pq+pr)
-7y+(3y+5)y-(8y+4d)+(7d-y)
-2(6s+8)+8s9+(3b-5)+(6b+6)
4(ab-6a)+(5a-7b)12(abc-8a)+2(9a-4abc)
2(xy-4z)-(-xy+3z)-8(pq+pr)-(2pq-pr)
-2m+(4m+1)7m-(5m-7s)+(9s+m)
-7(8a+9)-5a5+(5b-4)+(9b+9)
6(ab+5a)-(3a+9b)9(abc+5a)+3(7a+3abc)
7(xy-3z)-(-xy+6z)-7(pq+pr)+(3pq+pr)
-3x+(2x-6)x-(3x-6s)+(9s+3x)
2(5t+3)+8t4+(9n-10)-(3n-5)
4(ab-3a)+(8a-4b)4(abc-2a)+5(5a-5abc)
6(xy-9z)-(-xy-5z)-9(pq+pr)-(5pq-pr)
-6b+(3b-3)b+(7b-8s)-(9s+b)
-5(9a+7)-3a10+(5a+7)+(5a-3)
4(-ab-9a)+(3a-6b)5(abc-4a)-5(2a+3abc)
6(xy-2z)+(-xy+9z)-7(pq+pr)-(5pq+pr)
3b-(2b+6)b+(2b+2s)-(8s+2b)
-7(7s-7)+9s2+(5m+2)+(6m+5)
8(ab-7a)-(5a-4b)3(abc+4a)+2(5a-2abc)
7(xy-6z)-(-xy-5z)-3(pq+pr)-(6pq+pr)
-2x-(5x+8)5x-(3x-6z)+(3z+8x)
-4(5a-6)-8a6+(5m-9)+(8m+4)
6(-ab-7a)-(9a-8b)2(abc+9a)+2(3a-8abc)
9(xy-2z)+(-xy-5z)-9(pq-pr)+(4pq-pr)
4y+(2y+4)2y+(4y-6q)-(9q+5y)
3(5m-5)-6m7-(8m+6)+(7m-1)
8(-ab-3a)+(2a+2b)10(abc+3a)-8(2a-7abc)
9(xy-9z)+(-xy-6z)-6(pq+pr)+(3pq-pr)
6a-(6a-9)4a-(8a+4s)-(4s-a)
-2(4n-8)-8n1-(9m+1)-(4m-3)
8(ab-2a)+(3a-7b)17(abc-7a)+7(4a-7abc)
4(xy+2z)-(-xy-4z)-2(pq-pr)-(3pq-pr)
-8x+(7x+9)2x-(4x-6p)+(8p+2x)
-7(3t+8)-9t5+(8a+5)-(6a+5)
5(-ab-8a)+(7a-7b)15(abc-7a)+6(7a-9abc)
3(xy-7z)-(-xy+8z)-6(pq-pr)-(8pq-pr)
-5m-(2m+4)9m-(3m-6c)+(9c+3m)
4(5b-1)-2b10-(4b+8)-(9b+8)
7(-ab-6a)-(5a-2b)15(abc+9a)+6(6a+5abc)
5(xy+5z)+(-xy+6z)-7(pq+pr)-(3pq-pr)
-5x-(4x-6)6x-(2x-8q)-(5q-6x)
-5(9t-3)-8t1-(2a+5)-(6a+1)
5(ab-3a)-(4a+4b)7(abc+5a)+7(4a+5abc)
2(xy-3z)-(-xy-7z)-9(pq+pr)-(4pq-pr)
-4y+(7y+8)5y+(6y+7s)+(3s-3y)
6(5m-8)-6m9+(9x+10)-(8x-9)
9(-ab-8a)+(9a+4b)16(abc-3a)-9(6a+7abc)
9(xy+7z)+(-xy+4z)-9(pq-pr)+(2pq+pr)
-2a+(4a-9)a+(2a-9z)-(5z+8a)
7(7m-5)-8m6+(8x+9)+(5x-10)
5(ab+2a)+(6a+7b)3(abc-3a)-6(7a+2abc)
7(xy-9z)-(-xy+9z)-6(pq+pr)-(9pq-pr)
-4b-(2b+4)8b-(5b-9p)+(4p-b)
-4(6n+6)-9n3+(3m+5)+(9m-4)