七年级数学上册合并同类项练习题精编255.docx
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七年级数学上册合并同类项练习题精编255
8(-ab+3a)-(4a+2b)3(abc-4a)-8(7a+4abc)
9(xy+6z)+(-xy+5z)-5(pq-pr)+(6pq-pr)
-2x+(9x+1)8x-(8x+5s)-(2s+x)
4(9b+10)-9b6-(2n-10)+(5n-9)
5(ab+9a)-(2a-7b)11(abc-4a)+3(9a-6abc)
2(xy-6z)+(-xy-8z)-8(pq-pr)+(9pq+pr)
-4a+(8a+3)5a-(9a-9c)-(9c+a)
7(7s+4)+4s3+(8y+7)+(5y+8)
2(-ab-7a)-(4a-8b)20(abc+6a)-9(6a+8abc)
3(xy+5z)+(-xy+4z)-9(pq-pr)+(7pq-pr)
-2x+(4x-8)x+(4x+2q)-(4q+8x)
9(3b+6)-2b1+(6a+8)-(3a-8)
8(-ab+3a)+(4a-7b)6(abc+6a)-5(5a+4abc)
2(xy+4z)-(-xy-9z)-6(pq+pr)-(4pq-pr)
6a+(9a+1)a+(9a-7c)+(9c-3a)
-9(3a-7)+4a7+(8a+8)-(7a-3)
4(-ab-7a)+(7a-6b)16(abc+9a)+7(7a-8abc)
8(xy-6z)+(-xy-3z)-7(pq+pr)+(6pq+pr)
-7x+(2x-9)5x-(3x+9c)+(5c-6x)
2(5a+7)-2a7+(3a+10)+(4a+7)
4(ab-2a)+(3a+4b)11(abc+8a)-7(6a-4abc)
8(xy+8z)-(-xy-5z)-2(pq+pr)-(5pq+pr)
9y-(9y-7)4y-(8y-3s)+(6s-8y)
6(4t+6)-5t9-(8y+2)+(7y+6)
8(ab+9a)-(3a+8b)17(abc+9a)+3(8a-6abc)
9(xy+6z)-(-xy+2z)-3(pq+pr)+(3pq+pr)
8n+(5n-3)n-(6n-3c)+(3c+n)
-3(5s+7)-8s7+(8m-10)+(7m-10)
7(ab+7a)+(2a+9b)3(abc-8a)+8(9a-4abc)
4(xy+6z)+(-xy-6z)-3(pq-pr)-(2pq+pr)
-6m+(7m+4)m+(4m+2s)-(5s+3m)
-8(4s-6)+4s1-(6n-9)-(3n-4)
4(-ab-4a)+(4a-2b)14(abc+4a)-5(8a+5abc)
7(xy+8z)+(-xy+4z)-3(pq-pr)+(5pq-pr)
-8a+(2a+7)a-(2a+9c)+(5c-3a)
-8(9s+10)-2s6+(4y+10)-(4y-6)
6(-ab+6a)+(7a-8b)11(abc+2a)+9(2a+9abc)
2(xy-7z)-(-xy-2z)-4(pq-pr)-(9pq+pr)
8b-(4b+2)b-(8b-8s)-(8s+3b)
-7(5s+7)+2s7-(4a-7)+(7a+3)
6(-ab-8a)+(3a-8b)8(abc-4a)+4(5a+7abc)
3(xy-6z)+(-xy-9z)-4(pq+pr)-(7pq+pr)
-9m+(2m+5)8m-(4m+9s)-(2s+2m)
2(6s+10)-8s7-(9y+6)+(3y+7)
5(-ab-7a)-(4a+7b)7(abc-7a)+8(2a-7abc)
3(xy-3z)-(-xy+9z)-2(pq+pr)+(9pq-pr)
-3y+(2y-3)y-(7y+4q)+(6q-7y)
5(6t+2)-6t9-(4b+6)+(5b-4)
2(-ab-9a)-(7a-5b)16(abc+8a)-5(7a+7abc)
6(xy-7z)+(-xy-3z)-5(pq-pr)-(4pq-pr)
5x-(7x-2)x+(8x+5p)-(7p+4x)
-4(9t+10)+2t2+(7n+2)-(8n+3)
3(ab+5a)+(3a+4b)16(abc-6a)-4(4a+2abc)
5(xy-8z)-(-xy+8z)-3(pq-pr)+(4pq-pr)
3a+(2a+9)a+(9a-3z)+(8z+5a)
9(8t-5)-8t5-(8n+3)-(9n-7)
3(-ab+4a)+(6a+7b)3(abc-9a)-6(7a-7abc)
8(xy-3z)-(-xy-5z)-5(pq+pr)+(4pq+pr)
-6n+(6n-7)8n+(9n-2q)-(9q-9n)
-3(6b-1)-4b2-(5b+7)-(7b+2)
2(ab-6a)+(4a+7b)12(abc+5a)-4(5a+6abc)
3(xy-4z)-(-xy-2z)-9(pq-pr)+(9pq-pr)
3y-(4y-7)4y+(8y-9z)+(3z+y)
-6(2n+10)+4n9-(7y+8)+(2y+1)
9(-ab-4a)-(8a+9b)13(abc+7a)-9(5a-4abc)
2(xy-4z)-(-xy+9z)-6(pq-pr)-(3pq+pr)
3y+(2y+7)y+(6y+4z)-(7z-8y)
-5(5a+6)-7a2+(5n-5)-(8n+1)
2(ab+4a)-(7a+6b)2(abc+5a)-8(7a+8abc)
2(xy+4z)-(-xy+8z)-3(pq+pr)+(7pq+pr)
8y+(5y-8)6y-(4y-7c)-(7c-6y)
4(8b-6)-7b9+(3y+1)+(5y+6)
8(ab-6a)+(6a-8b)11(abc+9a)-9(9a-3abc)
5(xy-6z)-(-xy-3z)-5(pq-pr)+(5pq+pr)
-4n-(7n-6)n-(9n+2c)+(7c+n)