七年级数学上册合并同类项练习题精编206.docx
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七年级数学上册合并同类项练习题精编206
7(xy+5z)-(-xy+7z)-8(pq+pr)+(8pq-pr)
5a+(6a+8)2a-(7a+3d)-(4d+3a)
-4(3b+5)-6b9-(6y-9)+(6y-8)
4(ab-5a)+(6a-4b)6(abc+8a)+6(7a-3abc)
4(xy-2z)+(-xy-7z)-5(pq+pr)+(7pq-pr)
-3m-(3m+5)m-(5m-5p)-(9p-m)
9(4m+7)+9m5-(3a-9)+(7a+2)
6(-ab+8a)+(3a+2b)3(abc-5a)-8(9a-5abc)
8(xy-6z)-(-xy+8z)-8(pq+pr)+(7pq-pr)
-3n+(2n+3)n+(3n-7p)-(7p+n)
-6(4m-6)+4m3-(9a-5)-(9a+8)
7(-ab-6a)+(5a+2b)15(abc-6a)-8(8a+5abc)
2(xy-5z)-(-xy+8z)-3(pq-pr)-(9pq+pr)
-2x-(7x+7)x+(5x+2d)+(3d+6x)
-3(6a+6)+8a1+(9x-9)-(2x-10)
4(-ab+8a)+(4a+2b)14(abc+7a)+5(9a+2abc)
3(xy-7z)-(-xy-3z)-7(pq-pr)-(6pq-pr)
7a-(8a-1)7a+(8a+6q)+(6q+a)
8(2m-10)+8m3+(9y+6)-(5y+8)
4(ab+7a)-(5a-5b)9(abc+2a)-8(8a-6abc)
9(xy+2z)+(-xy-3z)-4(pq+pr)+(2pq-pr)
-2y-(7y+6)y-(2y+7d)+(3d-y)
-2(5m-1)+9m6+(6y-9)-(9y-2)
5(ab-3a)+(6a-6b)12(abc-7a)+4(9a-9abc)
9(xy-6z)+(-xy-9z)-6(pq-pr)-(8pq-pr)
7x+(3x+5)5x-(3x+3p)-(9p-4x)
-4(4a-7)-5a4-(2n+4)+(8n+4)
2(-ab-2a)-(5a-5b)5(abc+2a)+6(9a-4abc)
4(xy-6z)+(-xy+6z)-3(pq+pr)+(8pq+pr)
-3n-(7n-6)n-(6n-6d)-(7d+n)
6(6a+1)-5a9-(2x-10)+(4x-6)
2(-ab-7a)+(4a+8b)14(abc+2a)+5(6a+5abc)
7(xy+7z)+(-xy+3z)-3(pq+pr)+(8pq+pr)
-3n+(2n+8)n-(3n-4p)+(3p+n)
-2(7n+5)-4n9-(2x-1)-(9x-5)
9(ab+7a)+(2a+3b)12(abc-8a)-7(8a-4abc)
3(xy+9z)-(-xy+3z)-9(pq-pr)-(3pq-pr)
8n+(5n+5)9n-(4n-4s)-(3s+n)
-2(5t-9)-9t8+(8b-1)-(5b-8)
8(ab+2a)+(9a-3b)17(abc-8a)+4(5a+3abc)
9(xy+9z)-(-xy-8z)-7(pq+pr)+(4pq+pr)
-4b+(5b-4)4b+(5b-4q)+(4q-7b)
4(7m+7)+9m2+(3n+8)+(5n+4)
6(-ab-6a)-(6a-5b)20(abc-2a)-3(4a-5abc)
4(xy+4z)-(-xy+6z)-3(pq-pr)+(9pq-pr)
-6a-(3a+6)a+(7a-4s)+(5s-8a)
5(4s+2)+3s9+(8x+9)+(2x+9)
2(ab-6a)-(6a+3b)6(abc+3a)-6(6a-7abc)
3(xy+2z)-(-xy+8z)-3(pq-pr)-(7pq+pr)
2b+(4b+8)6b-(7b-2p)+(3p-b)
5(5b-7)+3b5-(3x+4)+(3x-4)
5(ab-5a)+(4a-9b)9(abc+6a)-4(4a+4abc)
4(xy-7z)-(-xy+2z)-2(pq-pr)+(8pq-pr)
7m-(3m-7)4m-(4m+8p)+(3p+3m)
-8(3n-7)+8n3-(8b-8)+(2b-6)
9(-ab-6a)+(3a-5b)6(abc-4a)-8(5a+8abc)
2(xy+6z)+(-xy-4z)-2(pq+pr)+(4pq-pr)
3a+(5a+8)7a+(5a+6q)+(5q-2a)
-3(7n-2)+9n8-(5n+5)+(7n+3)
5(ab-5a)-(8a-9b)12(abc-8a)-6(7a-3abc)
4(xy-6z)-(-xy+9z)-7(pq+pr)+(4pq+pr)
-6y-(8y-1)3y+(5y+4z)-(3z+9y)
3(8t-1)+6t9+(7n+8)+(4n+3)
3(ab+5a)+(7a+9b)12(abc+2a)+9(9a+3abc)
3(xy+4z)-(-xy+3z)-4(pq+pr)-(7pq+pr)
-7x-(5x-2)3x-(9x-5p)-(5p+9x)
6(7m-9)+4m8+(4x-2)-(6x+4)
6(-ab+5a)-(7a+4b)11(abc-3a)-3(9a-2abc)
6(xy-4z)+(-xy-9z)-3(pq+pr)+(2pq+pr)
7b-(9b+7)b+(8b-8c)+(3c-6b)
-7(4a-1)-8a10-(5b+5)-(8b+5)
4(ab+3a)-(5a+6b)5(abc+4a)-7(5a-6abc)
3(xy-4z)-(-xy-2z)-2(pq+pr)-(2pq-pr)
-5n-(3n-7)2n+(6n+6s)-(6s-2n)
-8(2n-7)-2n5+(7b-7)-(5b+4)