七年级数学上册合并同类项练习题精编30.docx
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七年级数学上册合并同类项练习题精编30
2(xy-8z)-(-xy-4z)-4(pq-pr)+(4pq+pr)
4x+(7x+3)5x-(6x+2z)+(2z-9x)
-5(2a+5)-3a5-(5x+9)-(5x+7)
6(ab+7a)+(2a+7b)15(abc-9a)+5(5a-7abc)
8(xy-2z)+(-xy-9z)-8(pq-pr)+(4pq-pr)
-9a-(3a-3)7a-(5a+5z)-(6z-a)
5(4a+4)-3a8+(3y+4)+(4y-2)
9(-ab-6a)+(2a-2b)18(abc+9a)+9(4a-8abc)
5(xy-7z)+(-xy-3z)-9(pq-pr)+(7pq+pr)
3y-(4y-8)4y-(4y-9q)+(2q-7y)
4(6s+6)+2s8+(4a-6)-(4a-8)
5(-ab+8a)-(5a+3b)8(abc-7a)+6(6a-7abc)
3(xy+4z)+(-xy-6z)-8(pq+pr)+(5pq+pr)
-7y+(7y+5)y+(2y+5p)-(5p+2y)
4(2t+10)-6t5+(3n-8)+(2n+1)
2(ab-4a)+(3a-9b)16(abc+9a)+7(6a+7abc)
9(xy+8z)+(-xy-4z)-5(pq-pr)-(4pq-pr)
-9n-(2n-3)n-(9n+4p)+(6p-9n)
-9(4a-7)-4a9+(5b-5)-(5b-1)
4(ab+6a)+(6a+3b)5(abc-4a)+7(5a-5abc)
5(xy-5z)+(-xy+4z)-3(pq+pr)+(5pq+pr)
-9b-(3b-7)b-(5b-7q)+(2q+2b)
5(6n-5)+8n6-(3x+1)-(7x-5)
2(ab-6a)-(4a-8b)20(abc-2a)+3(4a-2abc)
4(xy+7z)+(-xy+6z)-3(pq-pr)-(7pq+pr)
3x-(2x+2)x-(9x-6s)+(6s+x)
6(8b+2)+6b6+(4x-1)-(7x+4)
7(-ab+5a)-(3a+9b)20(abc+2a)-4(9a+3abc)
5(xy-4z)-(-xy+8z)-7(pq+pr)+(7pq+pr)
-7y-(6y-6)6y-(2y-2p)+(9p-y)
6(5n+8)-2n1+(2x+8)-(8x-5)
5(-ab+9a)+(8a-2b)3(abc+4a)-7(6a+2abc)
7(xy-9z)-(-xy-5z)-6(pq-pr)-(9pq-pr)
-7y-(2y+3)9y-(5y-9p)+(8p+8y)
-9(3s+8)+9s9-(2x+3)-(8x-5)
5(ab+9a)+(4a+3b)8(abc-8a)+6(4a+7abc)
3(xy-3z)+(-xy-8z)-4(pq-pr)+(9pq-pr)
5b-(6b+1)3b-(8b+9s)-(6s+b)
-5(2t+6)-6t9-(6a+1)-(5a-3)
5(ab-3a)-(2a+4b)4(abc-9a)-4(7a+9abc)
8(xy-4z)+(-xy+9z)-8(pq-pr)-(4pq-pr)
5m-(2m-2)9m+(2m-7q)+(5q-m)
8(8s+6)-2s9+(9n+4)+(3n+9)
7(ab-6a)-(3a-6b)20(abc+8a)+3(5a-8abc)
9(xy+4z)+(-xy+6z)-2(pq+pr)-(7pq-pr)
8m+(4m+3)6m-(6m+7q)+(6q-m)
7(7a+1)+4a6-(2n-5)-(5n+2)
4(-ab+8a)-(8a+5b)20(abc+3a)-7(4a-6abc)
5(xy+4z)-(-xy-3z)-6(pq-pr)-(5pq+pr)
7a-(6a-7)a+(9a+2d)-(8d-3a)
7(2a-7)+4a9+(6b+5)-(9b+3)
2(ab-7a)-(3a+3b)17(abc-9a)+6(9a-6abc)
9(xy+4z)-(-xy-2z)-7(pq-pr)-(7pq-pr)
9x-(6x+7)5x-(8x-7d)+(5d+x)
-8(6a+1)+7a3+(7n+5)-(7n-7)
2(ab-7a)+(9a-9b)16(abc+4a)+2(4a+4abc)
5(xy-5z)+(-xy-9z)-2(pq-pr)+(4pq-pr)
-5a+(2a+2)a+(5a+3z)-(2z-3a)
6(9t-8)+9t2+(3n-3)+(5n+4)
3(ab-3a)-(8a+8b)19(abc+7a)+2(5a+3abc)
3(xy+8z)-(-xy-2z)-9(pq-pr)+(5pq+pr)
-7m-(6m-1)2m-(6m+4s)+(4s-7m)
-6(7s-1)-8s9+(5a+1)-(6a+5)
2(ab-6a)-(2a-8b)10(abc+5a)+8(5a+2abc)
6(xy+7z)+(-xy-3z)-8(pq+pr)+(9pq-pr)
6a-(9a+8)9a-(9a+7d)+(7d-6a)
2(4b-4)+3b6-(8n-9)+(3n-5)
4(-ab+4a)+(2a+8b)19(abc-7a)+3(9a+3abc)
2(xy+9z)+(-xy+8z)-7(pq-pr)-(5pq+pr)
3m+(9m+6)7m+(9m-8q)-(4q+4m)
9(2a+6)-6a10+(6x+6)+(7x+8)
9(-ab+7a)-(8a+6b)9(abc+6a)-8(9a+8abc)
2(xy+6z)-(-xy-2z)-2(pq+pr)+(6pq+pr)
-9b-(5b+3)b+(6b+7z)-(5z+b)
-7(3b-1)-2b3+(8m+4)-(9m+5)