七年级数学上册合并同类项练习题精编91.docx
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七年级数学上册合并同类项练习题精编91
2(ab-5a)-(8a+3b)17(abc-9a)+5(6a-2abc)
6(xy-6z)+(-xy-8z)-5(pq+pr)+(2pq-pr)
-9m+(6m-6)m-(4m-3p)-(3p-m)
9(7s+8)-7s6-(4b+6)-(6b+4)
7(ab-9a)+(3a-4b)9(abc+8a)+4(8a+3abc)
2(xy+7z)+(-xy-6z)-4(pq+pr)+(7pq+pr)
6x+(5x+5)5x-(7x+3q)+(7q+x)
-5(3a+5)+6a7-(7a+10)+(8a-1)
9(ab-5a)-(4a+5b)4(abc-7a)-3(9a+7abc)
2(xy+7z)-(-xy+6z)-8(pq-pr)+(7pq-pr)
-3n-(3n+1)n-(7n+7q)+(3q-n)
5(7b+9)-7b9-(6a-5)+(5a-9)
2(ab+9a)+(3a-3b)13(abc-3a)-2(9a-7abc)
6(xy-2z)-(-xy-5z)-5(pq+pr)+(4pq-pr)
2x-(5x-3)x+(7x+2d)+(8d+2x)
-8(5n-10)+2n5-(8n-1)+(3n+5)
9(-ab+3a)-(8a-4b)6(abc-5a)+9(3a-5abc)
3(xy-4z)-(-xy-2z)-7(pq-pr)+(2pq+pr)
-2x+(8x+4)x-(9x+4d)+(8d+x)
-5(7n-3)+5n6+(8a-7)-(9a+10)
3(-ab+5a)-(2a+3b)5(abc-4a)+6(7a-6abc)
8(xy-6z)+(-xy-4z)-8(pq+pr)+(5pq+pr)
-3y+(6y+6)y-(7y+5p)-(6p+y)
-6(3n+10)-5n7-(5b-2)+(9b+8)
5(-ab+8a)-(6a-4b)5(abc+4a)+5(2a-6abc)
5(xy+2z)-(-xy+4z)-2(pq+pr)-(6pq-pr)
-5n-(5n+8)n-(2n+9s)+(4s-n)
3(8b+9)-2b4+(9m-10)-(7m+5)
8(-ab-9a)+(4a-7b)17(abc-6a)-4(7a+9abc)
7(xy+6z)-(-xy+4z)-6(pq-pr)+(5pq+pr)
-6x-(7x+2)3x+(2x+2z)-(3z+x)
2(6a-4)+5a3-(3y+6)-(5y+8)
8(-ab+8a)+(5a-9b)7(abc+2a)+7(8a+2abc)
8(xy+8z)-(-xy-7z)-2(pq+pr)+(3pq-pr)
-8y-(7y-8)y-(4y+9q)-(8q-9y)
-6(7b+2)-7b9+(2x-6)+(4x+8)
7(ab-7a)+(6a+7b)4(abc+8a)-8(5a+4abc)
2(xy+4z)+(-xy+3z)-6(pq-pr)-(2pq-pr)
-8m-(9m-2)m-(8m-8q)-(5q-9m)
2(4b-9)+6b2+(6a+10)+(7a-6)
9(-ab+6a)+(3a-8b)18(abc-3a)+9(2a+8abc)
4(xy-7z)+(-xy-2z)-3(pq-pr)-(2pq-pr)
3a-(5a+4)a+(5a+9s)-(5s+3a)
-5(8b+2)+7b4+(2x-5)-(4x+7)
6(-ab-4a)-(3a+3b)6(abc+8a)+8(8a-5abc)
4(xy+5z)+(-xy+8z)-2(pq-pr)-(6pq+pr)
6m-(6m+9)9m-(5m+3s)+(4s+4m)
-4(8b+5)-8b6-(3b+2)-(2b-4)
2(-ab-3a)-(8a-7b)4(abc+8a)-5(9a-3abc)
2(xy-4z)-(-xy+4z)-7(pq+pr)-(8pq-pr)
3y-(2y+4)2y-(8y-3p)-(8p+4y)
2(9b+5)+2b2-(2x-7)+(4x+10)
5(-ab+4a)+(2a-9b)19(abc-7a)-2(8a-3abc)
7(xy+9z)+(-xy-2z)-6(pq-pr)-(9pq+pr)
2y+(7y-1)y-(4y-3p)-(4p+9y)
-6(5s-8)+9s10+(3a-9)-(8a-3)
5(-ab+4a)+(8a-2b)5(abc+2a)-5(5a-7abc)
7(xy-2z)+(-xy+3z)-6(pq+pr)+(2pq+pr)
2m+(7m+1)m+(6m-5d)-(7d+m)
5(2t-7)-7t3-(6x+1)-(2x+7)
6(ab+3a)-(2a+5b)18(abc-8a)+2(8a-7abc)
7(xy-5z)+(-xy+9z)-7(pq+pr)+(8pq+pr)
-6n-(3n-4)n-(5n-6p)-(6p-n)
-6(3s-9)-4s1+(5m+7)-(3m+4)
4(ab+2a)-(9a-2b)8(abc+2a)-9(2a-5abc)
5(xy+4z)+(-xy-9z)-7(pq-pr)-(4pq+pr)
6a+(9a+5)a-(8a+9c)+(8c+3a)
9(7t+7)-4t7-(4n+5)-(2n+8)
8(ab+7a)-(4a+4b)12(abc+4a)-6(5a-7abc)
4(xy+6z)-(-xy-5z)-4(pq+pr)-(4pq-pr)
-3a-(7a-4)a+(7a-6z)+(8z+5a)
-5(9t-8)+9t6-(7n+3)-(9n+6)
6(-ab-6a)+(4a+7b)4(abc-5a)+4(9a+3abc)
9(xy-6z)+(-xy+5z)-5(pq+pr)+(2pq-pr)
9b+(8b-8)4b-(8b-7s)+(7s-b)