七年级数学上册合并同类项练习题精编214.docx
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七年级数学上册合并同类项练习题精编214
5(xy+3z)+(-xy+2z)-4(pq-pr)-(4pq-pr)
6x+(6x-3)4x+(5x-8c)-(2c+x)
-4(3b+4)-3b8-(5b-9)-(9b+2)
4(-ab-5a)-(9a+9b)6(abc+4a)+7(8a-6abc)
4(xy-9z)+(-xy+3z)-4(pq+pr)-(2pq-pr)
-6n+(9n+6)7n-(2n+8z)-(7z-n)
3(5t-2)-2t4-(8y+2)+(8y-4)
9(ab-2a)+(2a-4b)14(abc-7a)+3(5a-5abc)
9(xy-3z)+(-xy+5z)-4(pq-pr)+(9pq-pr)
5y-(2y-5)5y-(2y-8z)+(4z-y)
5(5n-3)-6n8-(5n+6)+(4n-5)
6(ab+3a)+(2a+4b)2(abc+4a)-7(5a+7abc)
3(xy+9z)+(-xy+9z)-3(pq-pr)+(9pq+pr)
-2b+(8b+3)b+(7b+3z)+(7z-4b)
-2(5s-10)-5s9+(5a-4)+(3a+4)
8(ab+3a)-(8a-2b)14(abc-9a)+6(6a-7abc)
3(xy+8z)-(-xy-3z)-9(pq-pr)-(5pq-pr)
2y+(9y-9)y+(6y+5s)+(4s-7y)
9(3t+3)-3t2-(2m-10)-(7m-1)
3(ab-3a)+(5a+4b)9(abc+7a)+9(8a+6abc)
2(xy+8z)+(-xy-8z)-4(pq+pr)+(6pq-pr)
9b+(3b-7)6b+(8b-5s)-(4s-3b)
-8(6n+2)+3n2+(5n-2)+(9n+7)
9(ab-6a)-(6a+7b)2(abc-3a)-7(4a-8abc)
2(xy+9z)+(-xy+3z)-2(pq+pr)+(4pq+pr)
3y+(4y-5)2y-(5y-9z)+(3z-3y)
8(6n-10)+7n10-(7n-3)+(2n-5)
5(ab-5a)+(4a+7b)16(abc-5a)-9(8a+9abc)
5(xy-6z)+(-xy-4z)-2(pq-pr)+(3pq+pr)
4m+(8m-8)m-(8m-8s)-(8s+m)
8(7b-5)+6b6-(4n+5)+(8n-4)
9(ab+9a)+(4a-3b)4(abc-8a)+6(9a-9abc)
3(xy+3z)-(-xy-3z)-4(pq-pr)-(6pq-pr)
2a-(2a+5)8a+(4a+9q)+(8q-a)
7(7s-2)-7s10-(4y-1)-(4y-6)
7(-ab+9a)+(2a-5b)6(abc+9a)+7(6a-4abc)
4(xy-6z)-(-xy-7z)-4(pq+pr)-(4pq+pr)
3x-(6x+8)x+(7x+9s)+(4s-x)
-9(8n-9)-8n1-(6x-6)-(2x-7)
8(-ab-3a)-(2a+4b)18(abc-4a)-9(7a+5abc)
5(xy+8z)-(-xy+4z)-8(pq-pr)-(8pq+pr)
-6y-(5y-7)2y+(6y-6s)-(7s+y)
5(7n+8)+2n7-(2b-6)-(5b-7)
9(ab-5a)+(6a+9b)12(abc-6a)+3(3a-3abc)
8(xy+4z)+(-xy+8z)-3(pq-pr)-(2pq+pr)
-5n+(9n+9)4n+(2n-8c)+(9c-3n)
2(4b+2)+3b7-(6x-10)-(8x+6)
6(ab-9a)-(9a-6b)20(abc-6a)+5(4a-5abc)
9(xy+3z)+(-xy-8z)-5(pq+pr)+(9pq-pr)
-3m-(3m-5)m+(8m-6z)+(3z-6m)
4(7m+8)-9m2+(2a-6)+(6a-10)
7(ab-2a)+(6a-6b)5(abc+9a)-2(2a+7abc)
3(xy-6z)-(-xy+6z)-4(pq+pr)-(9pq-pr)
7b+(8b-9)b+(2b-3c)-(9c-6b)
4(6m-10)-4m5+(5b-2)+(2b-10)
7(ab+7a)+(5a-8b)16(abc-4a)-3(7a+9abc)
5(xy-2z)-(-xy-5z)-9(pq+pr)+(8pq+pr)
7y+(3y+5)8y+(4y-2d)-(8d+6y)
5(5m-3)+8m3+(3m+2)-(4m-2)
3(-ab-5a)-(5a+7b)6(abc-5a)+8(7a-5abc)
8(xy+8z)+(-xy-5z)-4(pq-pr)-(7pq-pr)
-7m-(9m+2)m-(7m-7z)-(3z+7m)
4(2m+1)-7m3+(7n-3)+(9n-1)
8(ab+9a)+(5a-9b)19(abc+2a)+5(3a-3abc)
7(xy-4z)-(-xy-8z)-2(pq-pr)-(7pq-pr)
6n+(2n+1)n+(5n-2p)+(5p+2n)
-6(8s+2)-2s7-(7m+1)-(2m-7)
2(-ab+4a)+(4a-9b)7(abc-7a)+9(2a+7abc)
9(xy+4z)-(-xy+6z)-5(pq-pr)-(3pq-pr)
8a-(2a-4)a-(3a+7s)+(3s-2a)
-7(4t-4)-5t1+(2m-4)+(4m-9)
8(ab-4a)-(9a+9b)17(abc-4a)-4(6a-3abc)
6(xy-2z)-(-xy+6z)-4(pq+pr)-(5pq+pr)
4y-(7y-6)7y+(6y+9d)-(5d+2y)
-2(4t+9)+7t10+(6y-5)+(9y-7)