七年级数学上册合并同类项专项训练21.docx
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七年级数学上册合并同类项专项训练21.docx
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七年级数学上册合并同类项专项训练21
-9x-(8x+4)x-(4x-2s)+(7s-7x)
7(7a-4)+5a3+(8y+3)-(3y-6)
9(-ab-2a)+(4a+8b)4(abc-5a)+2(6a+6abc)
7(xy-4z)+(-xy-2z)-8(pq+pr)+(9pq+pr)
5b-(9b+4)b-(6b-6s)+(7s+b)
-9(3t-2)-5t4-(8n-9)+(2n+10)
8(ab+8a)+(9a-4b)14(abc+7a)+8(5a-5abc)
5(xy+2z)-(-xy-4z)-4(pq-pr)-(6pq+pr)
2n-(8n-2)8n-(5n-9d)-(4d-n)
-9(3t+10)-8t2+(8y-10)+(2y-4)
7(ab-2a)+(8a+2b)20(abc-6a)-2(2a+6abc)
9(xy-5z)+(-xy-6z)-9(pq-pr)-(5pq+pr)
9b-(6b+1)6b-(3b+8c)-(4c-8b)
3(9m+7)-5m8+(6x+1)+(6x+5)
3(-ab+7a)-(7a+3b)4(abc+9a)-4(5a-7abc)
3(xy+8z)-(-xy+3z)-5(pq-pr)-(6pq+pr)
7m-(7m+2)6m+(7m-2c)-(3c+m)
-4(5a+5)-6a6+(6a-4)+(3a+10)
7(-ab+7a)-(5a-9b)5(abc-8a)-2(2a-8abc)
8(xy-3z)+(-xy+5z)-7(pq-pr)+(4pq+pr)
7n-(3n-6)n+(4n+8d)-(7d-2n)
7(3n-3)+3n6+(6x+6)+(2x-6)
5(ab-9a)-(4a+2b)8(abc+4a)+9(9a+3abc)
5(xy+3z)+(-xy-7z)-6(pq-pr)-(2pq-pr)
-3m+(4m+7)m+(3m+5z)-(2z+m)
7(7a+9)-6a10+(7m+6)+(9m-4)
8(ab-7a)-(3a+8b)11(abc-6a)+9(3a-6abc)
8(xy-3z)+(-xy-8z)-7(pq+pr)-(5pq-pr)
8a+(5a-7)7a+(2a-6s)+(9s-a)
5(6m+2)-2m6-(3n+3)+(6n+10)
3(ab+6a)-(9a-5b)19(abc+2a)+8(2a-5abc)
4(xy+7z)-(-xy+5z)-2(pq-pr)+(9pq-pr)
-4a-(3a+1)3a+(9a-5s)-(6s+a)
7(6s+5)-3s5+(3m-5)+(8m+1)
5(ab+7a)+(3a+9b)16(abc-5a)+5(5a+4abc)
3(xy+8z)-(-xy-9z)-4(pq+pr)+(4pq-pr)
4b-(5b-6)6b+(3b-3q)-(2q+b)
8(6n+9)-6n1+(2x-4)+(3x+9)
9(ab-3a)-(5a+4b)20(abc+8a)+3(2a+3abc)
9(xy-9z)+(-xy+3z)-3(pq-pr)-(7pq-pr)
5m+(9m+4)9m+(3m+7z)+(2z+m)
-3(3b+6)+2b10-(2y+3)+(8y-6)
6(ab+4a)+(5a+5b)7(abc-7a)+7(4a-4abc)
5(xy+3z)-(-xy-8z)-5(pq+pr)+(3pq+pr)
-3a-(5a-4)3a+(5a+5z)-(2z+a)
4(5t+4)+8t6+(8n-3)-(3n+9)
5(ab-6a)-(8a+2b)5(abc-9a)+6(5a-2abc)
9(xy-4z)-(-xy+8z)-6(pq+pr)+(8pq+pr)
-4a-(3a+1)4a-(2a-9c)+(5c-8a)
8(7n+4)-9n2+(4a+5)-(5a-2)
2(-ab-3a)-(9a-8b)10(abc-4a)-3(8a-3abc)
3(xy+2z)+(-xy-2z)-7(pq+pr)-(5pq+pr)
-4x-(6x-7)x+(7x+6d)-(3d-x)
-8(7m+3)+6m2-(9b-1)+(5b-9)
6(-ab+7a)-(5a-4b)7(abc+8a)+9(9a-8abc)
7(xy-2z)-(-xy+3z)-9(pq+pr)+(7pq-pr)
9n-(9n+1)n-(5n+2p)-(6p+9n)
8(8s+9)-3s9+(3m-5)-(7m-2)
5(-ab+6a)-(3a+7b)3(abc-3a)-4(2a+4abc)
5(xy+8z)+(-xy-2z)-5(pq+pr)-(6pq-pr)
5m+(6m-2)m+(3m+9q)-(2q+8m)
-6(9n-6)+4n10-(4a+10)-(6a+10)
2(ab+5a)+(8a+3b)18(abc-4a)-8(9a-3abc)
7(xy+7z)-(-xy-7z)-2(pq-pr)-(6pq-pr)
-2m-(9m-4)m+(6m+7d)+(8d-m)
7(6n-7)-7n8+(2n+3)+(6n-8)
2(ab+6a)-(2a-9b)17(abc+3a)+8(8a+4abc)
4(xy-4z)+(-xy-7z)-6(pq-pr)+(7pq-pr)
-6b-(8b-2)6b+(8b+3p)+(5p-2b)
-9(6s+10)-6s10-(3a-2)+(6a+1)
9(-ab+4a)+(3a+8b)18(abc-5a)+8(7a+7abc)
6(xy+8z)+(-xy-7z)-5(pq+pr)+(3pq-pr)
8y-(5y+6)2y+(3y+7q)+(4q-6y)
9(5n+2)-6n9-(5y+5)+(9y+7)
4(ab+4a)+(8a+5b)4(abc-2a)+5(7a-9abc)
2(xy+9z)-(-xy-3z)-3(pq-pr)+(4pq+pr)
7m-(8m-3)6m-(6m+7s)+(8s-3m)
5(5n+7)+7n4-(7m+4)+(4m-3)
3(ab+8a)+(9a+3b)9(abc-5a)-8(3a+5abc)
5(xy+7z)+(-xy+8z)-7(pq+pr)-(8pq-pr)
-9y+(7y+5)y+(7y+4z)+(3z+6y)
2(3b-10)+7b6-(5a+9)+(3a+2)
5(-ab+3a)+(2a-2b)15(abc-2a)+8(6a+3abc)
7(xy-2z)+(-xy-4z)-8(pq+pr)-(9pq-pr)
8a+(3a+4)a+(7a-6q)-(2q+a)
-2(7s-2)+8s10-(8y-1)-(9y+2)
8(ab-7a)+(6a-3b)6(abc+2a)+4(7a-6abc)
2(xy+2z)+(-xy-7z)-4(pq-pr)+(2pq+pr)
8y+(6y+4)2y-(4y+5d)+(4d+y)
8(8m-8)-3m9-(5b+10)+(9b-2)
2(ab+5a)-(6a-5b)16(abc+7a)-9(6a+2abc)
2(xy+9z)-(-xy+2z)-9(pq-pr)-(8pq+pr)
5a-(9a-9)a+(2a+4d)-(2d+a)
-3(8b-3)+8b2+(6b-9)-(2b-1)
3(-ab-9a)+(8a-3b)20(abc+6a)+5(8a-4abc)
7(xy-2z)-(-xy-2z)-2(pq-pr)+(9pq-pr)
-6b-(6b-4)b+(6b-6q)+(9q+b)
4(2s+5)-3s8+(2x-7)+(4x-9)
7(ab-9a)+(2a-3b)12(abc+4a)+8(4a-9abc)
8(xy-7z)+(-xy+4z)-2(pq-pr)+(7pq-pr)
-6x+(4x-9)x-(2x+6c)+(4c+5x)
2(4m-9)-2m3-(5n-8)-(8n-10)
6(ab-7a)+(2a+9b)19(abc-5a)+3(4a+7abc)
2(xy+2z)+(-xy-4z)-5(pq-pr)-(9pq-pr)
6b+(2b+4)3b+(4b+8s)+(3s+4b)
-4(6n+2)-5n6-(7y-1)-(2y-2)
2(ab+8a)-(6a+4b)8(abc+5a)-3(5a-6abc)
8(xy+9z)+(-xy-8z)-9(pq-pr)+(6pq-pr)
-8a-(8a-1)6a-(9a+6z)-(5z-a)
9(5t-7)-6t3+(5a+8)-(6a+7)
7(ab+4a)+(9a-7b)11(abc-2a)-7(7a-6abc)
2(xy-2z)-(-xy+8z)-3(pq-pr)+(7pq+pr)
8n+(9n+2)n+(4n-9z)+(9z-n)
-6(8b-9)+2b6-(6x+5)-(5x-9)
3(ab-5a)-(2a+6b)16(abc-6a)-8(3a-7abc)
7(xy+4z)+(-xy+6z)-9(pq-pr)+(5pq-pr)
-4y+(2y+7)y+(3y-4c)+(6c-5y)
3(6m-5)+4m7+(9y+4)+(8y-1)
2(ab-9a)-(7a+6b)19(abc+7a)+5(9a+8abc)
6(xy+4z)+(-xy+9z)-5(pq+pr)+(3pq-pr)
5x+(7x-9)3x-(2x-9d)+(7d-8x)
8(9t-8)+9t2+(5y+4)-(6y-3)
2(-ab-9a)-(2a-2b)12(abc+6a)-7(2a-6abc)
7(xy-2z)+(-xy-9z)-7(pq-pr)+(9pq+pr)
5a+(7a-4)a-(7a-7z)-(2z+3a)
7(3s+4)+8s9-(9a+1)-(8a+8)
3(-ab+3a)+(7a+3b)12(abc+8a)+9(3a-2abc)
5(xy+3z)-(-xy-5z)-6(pq-pr)+(4pq+pr)
-9y+(6y+9)y+(4y+8s)-(2s-2y)
3(9a-10)-4a7-(6m-6)+(9m-4)
6(ab+6a)-(7a+7b)4(abc+8a)+8(6a+9abc)
6(xy-7z)-(-xy-4z)-2(pq+pr)-(7pq-pr)
-3x+(3x+5)x+(9x-2p)-(7p-6x)
-3(6s-5)+5s4+(3m+1)+(2m+8)
2(-ab+7a)+(8a+4b)15(a
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- 七年 级数 上册 合并 同类项 专项 训练 21
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