七年级数学上册合并同类项基础练习题123.docx
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七年级数学上册合并同类项基础练习题123
8x+(4x-6)x+(2x-9c)+(9c+8x)
3(8s-3)-2s7-(7b-2)-(2b-9)
7(-ab-3a)-(8a-9b)18(abc+8a)+4(9a+2abc)
8(xy+6z)+(-xy-2z)-7(pq-pr)+(6pq-pr)
9m+(9m+2)5m-(2m+6c)-(5c+m)
-7(4t+10)-4t2+(7m+4)+(9m-9)
2(-ab-3a)-(8a-7b)4(abc+8a)-4(8a+8abc)
7(xy-7z)+(-xy-3z)-2(pq-pr)-(5pq+pr)
-4a-(5a-9)a-(8a-7p)-(3p-2a)
-7(9m+9)-5m1+(8m-5)+(8m-7)
3(ab+4a)-(4a+7b)6(abc-5a)+9(8a+9abc)
3(xy+4z)-(-xy-3z)-7(pq+pr)-(7pq+pr)
7m-(7m+6)m+(2m+8d)-(2d-m)
2(4s-8)+3s8+(7b-9)+(3b-5)
3(-ab-2a)+(6a-5b)9(abc+8a)-3(3a+4abc)
5(xy-3z)-(-xy+8z)-5(pq-pr)-(9pq+pr)
-2a+(5a-8)a-(5a-7q)+(7q-5a)
-9(7n-7)+3n1-(5m-5)+(5m-9)
4(ab+7a)-(5a+2b)8(abc-9a)-5(5a-8abc)
3(xy+7z)-(-xy-7z)-4(pq-pr)-(5pq+pr)
-9n+(9n+4)n+(6n+3c)+(6c-n)
-2(8a-5)+2a9+(8m+1)-(3m-7)
6(ab+6a)-(7a+9b)3(abc-4a)+3(4a-6abc)
6(xy-5z)+(-xy+8z)-3(pq-pr)-(8pq+pr)
3n-(2n+7)7n+(2n-3s)-(7s+3n)
-6(2a+5)-9a2+(3x-5)+(3x+9)
2(ab-5a)-(3a-4b)18(abc+7a)-5(5a+6abc)
7(xy-8z)+(-xy-7z)-9(pq+pr)+(4pq+pr)
-9y-(5y-9)y+(6y-6d)+(8d+5y)
-8(5m-5)+8m10+(9a+8)+(6a+6)
6(-ab-7a)-(4a-6b)7(abc+5a)+9(9a+5abc)
5(xy+9z)-(-xy+6z)-6(pq-pr)+(4pq-pr)
4x+(3x-7)2x-(9x+4d)-(3d+7x)
9(3s-5)+5s4+(7n+1)+(5n-7)
6(ab+2a)+(2a+2b)8(abc+8a)-5(7a+2abc)
2(xy-5z)-(-xy-3z)-8(pq+pr)-(5pq+pr)
-2n-(6n+8)2n-(2n-4p)+(5p+n)
-3(9m+1)+2m5-(2b+9)-(5b-6)
3(-ab+3a)-(7a-7b)4(abc-4a)+2(8a-6abc)
8(xy+6z)-(-xy-7z)-6(pq-pr)+(5pq-pr)
-4x-(2x+4)7x-(9x-5c)+(9c-x)
4(7n-9)+6n9+(3n+3)-(6n+9)
3(-ab+7a)+(9a-5b)20(abc+6a)-7(2a+6abc)
4(xy-2z)+(-xy+5z)-4(pq+pr)+(6pq+pr)
2n+(5n-7)n-(8n+8c)+(5c-n)
3(7b-6)-8b6-(7b-2)+(4b+9)
6(ab-3a)+(2a-9b)5(abc-3a)-4(9a+3abc)
5(xy-9z)-(-xy-2z)-2(pq-pr)+(6pq+pr)
-5y-(4y-3)4y-(6y+7q)-(4q+3y)
-9(4b-3)-3b1+(9y-6)-(5y+8)
2(-ab-3a)+(3a+9b)9(abc-4a)+2(4a-8abc)
7(xy+9z)+(-xy-8z)-7(pq-pr)-(5pq-pr)
7a+(6a+1)4a+(6a-8q)-(5q+a)
-7(5n+8)+2n3+(9x+7)+(4x+2)
3(-ab-5a)-(6a+7b)17(abc+4a)+4(7a-8abc)
9(xy-4z)-(-xy-8z)-7(pq-pr)+(9pq-pr)
7a-(3a-5)4a+(7a-5p)-(5p-5a)
2(8a-3)+2a10-(8n-5)-(2n-4)
8(-ab+9a)+(8a-9b)3(abc-8a)-7(5a+5abc)
8(xy+2z)-(-xy+3z)-5(pq-pr)-(2pq-pr)
-8n+(6n-7)n-(9n+6z)+(2z+5n)
-9(8b+2)+8b6-(2x-1)+(2x+6)
9(ab+4a)+(5a-6b)9(abc-2a)-6(5a-4abc)
6(xy+4z)-(-xy+7z)-4(pq+pr)+(3pq+pr)
-9a+(9a-8)a-(3a-9c)-(7c-a)
8(7a+1)+6a5+(7y+2)+(6y+5)
4(ab+4a)-(3a-7b)14(abc-5a)+2(4a+5abc)
6(xy+8z)-(-xy+5z)-9(pq-pr)+(7pq+pr)
-8m-(8m+9)m+(4m+6z)+(2z+m)
5(8n+9)+7n3-(4m+5)+(9m-1)
6(-ab+7a)+(3a-6b)9(abc+5a)-2(9a+6abc)
3(xy-5z)+(-xy-3z)-5(pq-pr)+(4pq-pr)
-8n+(6n+7)7n-(7n-5d)-(8d-2n)
-2(8n+3)-2n8+(2b+1)-(5b-9)
9(-ab-6a)-(9a-2b)13(abc+3a)+7(9a-8abc)
5(xy+4z)+(-xy-5z)-8(pq-pr)+(3pq-pr)
2x+(9x+1)2x+(6x+4z)+(2z-x)
8(6s+1)-8s3-(9n+3)-(5n-8)
7(ab+6a)-(9a+7b)13(abc-6a)-5(9a+2abc)
5(xy+5z)-(-xy-2z)-8(pq-pr)+(6pq-pr)
8n-(8n+7)n-(7n-6q)-(9q-7n)
-8(9n-10)-4n9+(4n-7)-(7n-6)
9(ab+3a)-(6a-8b)12(abc+9a)-3(5a-2abc)
4(xy-4z)-(-xy-8z)-4(pq-pr)+(9pq-pr)
-3a-(5a-6)9a+(6a+9z)-(7z+4a)
5(4s-8)+7s9-(5y+5)-(8y+1)
2(-ab+2a)+(7a+9b)4(abc-2a)-5(8a-8abc)
6(xy-2z)-(-xy-9z)-5(pq+pr)-(9pq-pr)
-4n+(5n-8)n-(3n-8q)+(4q+7n)
9(5n-5)+9n2-(5b-3)+(8b-4)