七年级数学上册合并同类项基础练习题299文档格式.docx
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7n-(5n+6)9n+(6n-7q)+(7q-4n)
-5(3n-8)+7n5-(3n-3)+(4n-1)
9(ab+6a)-(8a-2b)13(abc+4a)+3(9a-7abc)
2(xy-3z)+(-xy+6z)-8(pq+pr)-(4pq-pr)
-8a-(3a-3)a+(6a-4c)+(3c-6a)
-8(6m-9)+5m2-(6b+5)+(9b-8)
3(ab+7a)+(7a+6b)8(abc+2a)-7(8a+3abc)
9(xy+5z)+(-xy+6z)-5(pq-pr)+(6pq+pr)
7a-(4a-9)a-(5a-4q)-(2q-7a)
8(7n-4)+9n8-(9y-1)+(2y-6)
5(-ab-6a)-(8a+2b)17(abc-5a)-6(8a+5abc)
3(xy+4z)-(-xy+5z)-4(pq-pr)-(3pq-pr)
-7y+(7y-3)5y+(7y-2c)-(5c-y)
-5(6m-2)+2m4+(7x+10)-(9x+4)
7(ab-3a)+(5a+5b)20(abc-5a)+4(3a-6abc)
3(xy-5z)+(-xy-4z)-6(pq-pr)+(4pq+pr)
6x-(5x+1)9x-(6x-3z)-(9z+x)
-9(6m-2)-3m3+(7b-8)-(8b-7)
3(-ab-6a)+(2a+7b)15(abc+2a)+5(9a-3abc)
7(xy+8z)-(-xy-5z)-4(pq-pr)+(7pq-pr)
8b+(5b-2)b+(8b-8d)-(8d+b)
-5(6n+10)-3n2-(5x-1)+(5x+1)
7(ab-8a)+(3a-9b)5(abc+6a)-3(7a-7abc)
7(xy+8z)+(-xy-6z)-5(pq+pr)-(9pq+pr)
8x+(8x+3)4x-(7x+4c)+(4c-5x)
4(2b-4)-7b9-(4x+7)+(6x-6)
5(ab+5a)+(3a-3b)4(abc+2a)-2(4a-2abc)
4(xy-8z)+(-xy+8z)-5(pq+pr)-(9pq+pr)
3n+(3n-4)n-(3n-3z)-(6z-n)
9(3t-7)+3t7-(4b+3)+(5b-4)
5(-ab-7a)+(8a-4b)19(abc-4a)+8(6a-4abc)
3(xy+8z)+(-xy-6z)-8(pq+pr)-(4pq-pr)
-4y-(6y-4)2y-(6y-4c)+(9c-y)
4(3a-5)-8a7-(2b+5)+(3b-3)
9(-ab+5a)-(2a+7b)3(abc+7a)+8(2a-7abc)
6(xy+2z)+(-xy+9z)-3(pq-pr)+(2pq-pr)
-8n-(7n+3)9n+(7n-7s)-(4s+n)
3(4a+6)-2a2-(7b-9)-(4b+2)
4(-ab+2a)-(4a-9b)15(abc-4a)+5(8a+5abc)
7(xy-3z)+(-xy+9z)-5(pq-pr)+(3pq-pr)
-3m+(9m+4)2m-(8m-5d)-(5d-7m)
-8(4m-10)-7m1-(7a+2)+(6a-9)
4(ab-2a)-(2a+7b)17(abc+7a)-5(9a-7abc)
5(xy-6z)-(-xy-7z)-7(pq-pr)+(8pq-pr)
-6a-(5a-6)a-(8a+5p)-(6p-a)
-9(7b-10)-9b2+(3b+9)-(8b-3)
5(-ab-4a)-(9a-4b)16(abc+3a)+9(8a+2abc)
2(xy+4z)+(-xy-4z)-8(pq-pr)+(3pq-pr)
6a+(9a+4)a-(3a-3z)-(3z-4a)
3(3a-7)+5a3+(8x+5)-(6x-3)
3(-ab+9a)+(7a+9b)13(abc+7a)+9(9a+8abc)
9(xy+3z)-(-xy-9z)-2(pq-pr)+(8pq-pr)
8m+(9m-5)2m-(4m+3c)+(7c+m)
6(6a+8)-2a3+(8y+2)-(9y-1)
2(ab+6a)-(5a+3b)5(abc+4a)+5(5a+6abc)
9(xy+5z)+(-xy-4z)-7(pq-pr)-(7pq-pr)
-2x-(9x-1)3x+(5x+2s)+(5s+x)
-2(7s-2)+3s8-(2n-9)-(8n-4)
5(ab+4a)-(8a-7b)14(abc-8a)+7(5a-6abc)
4(xy+9z)+(-xy-3z)-5(pq+pr)+(7pq+pr)
4a-(6a+5)a-(2a-8q)-(9q+9a)
-5(3t-7)-4t4-(6y-8)-(6y-3)
5(-ab+6a)-(5a+8b)16(abc-6a)+9(7a+6abc)
9(xy+8z)+(-xy-4z)-6(pq+pr)+(2pq-pr)
4x+(7x-9)x-(8x-7z)+(6z-x)
8(3a-7)-5a8-(3b-3)+(3b+3)
9(-ab-4a)+(6a+6b)8(abc+8a)-7(7a+3abc)
7(xy-8z)-(-xy+4z)-3(pq-pr)-(5pq-pr)
-7a-(8a+8)a-(4a+8q)-(6q-a)
-6(8a-6)+5a10-(9b+7)+(4b-6)
7(ab+4a)-(5a+8b)10(abc-5a)-5(7a-8abc)
7(xy-4z)+(-xy-7z)-7(pq-pr)-(3pq+pr)
-4x-(9x+8)x+(8x-5d)-(2d-x)
3(7a-4)-2a1+(8n-8)-(8n-10)
7(ab+2a)-(3a+7b)4(abc-8a)-5(8a-7abc)
2(xy-3z)-(-xy+7z)-3(pq+pr)-(5pq-pr)
-7a+(7a+4)a-(6a+3z)-(5z+a)
8(8n-4)+2n2+(3b-5)-(2b-3)
6(ab+3a)-(9a+4b)15(abc+4a)+5(5a-9abc)
7(xy-5z)+(-xy+5z)-2(pq-pr)-(6pq-pr)
-5y-(8y+4)5y-(9y-2s)+(2s+y)
6(8a+3)+4a1+(8y-6)+(2y-8)