七年级数学上册合并同类项练习题精编221.docx
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七年级数学上册合并同类项练习题精编221
5n-(7n+4)n+(2n-8c)+(8c-4n)
-5(4t-8)-6t6+(9b+2)-(5b+10)
2(ab+9a)+(4a-9b)10(abc+2a)+5(8a-5abc)
3(xy-4z)+(-xy-5z)-4(pq-pr)+(9pq+pr)
-7n+(7n+7)n+(7n-9c)+(2c-2n)
-8(3a-10)-2a7-(3a+10)-(6a-4)
9(ab+6a)+(8a+8b)12(abc+9a)-8(6a-8abc)
3(xy+6z)+(-xy+2z)-4(pq-pr)+(5pq-pr)
-8a-(3a-7)4a+(7a+5d)-(5d+8a)
-9(4t+1)-3t7-(8a-8)+(6a+10)
2(ab-6a)-(7a+7b)14(abc+6a)+5(5a-7abc)
7(xy+8z)-(-xy-4z)-6(pq-pr)-(3pq+pr)
-2m+(7m+6)m+(8m+8p)-(6p+9m)
-6(7t+9)-9t10+(8y-8)-(9y-5)
3(ab+4a)+(8a+9b)13(abc-5a)-7(7a+4abc)
5(xy+8z)+(-xy+4z)-5(pq-pr)+(9pq+pr)
-3a-(3a-9)a-(4a+8c)+(4c+7a)
3(7t+2)+9t2+(4b-5)+(2b-9)
5(ab-8a)+(8a+8b)15(abc+5a)-8(5a-8abc)
7(xy+5z)+(-xy-7z)-3(pq+pr)-(2pq-pr)
-4m-(3m-5)4m-(9m-3p)+(2p-3m)
7(9a+6)-3a6-(5b-9)-(9b+1)
8(ab-3a)+(4a-9b)2(abc-7a)+6(6a-8abc)
5(xy+2z)+(-xy-9z)-6(pq-pr)+(7pq-pr)
5y+(5y-5)y+(3y-6d)-(6d-y)
-7(5s-6)+2s6+(9n-1)-(5n+6)
5(-ab+4a)-(6a-6b)17(abc+9a)-6(8a-2abc)
7(xy+2z)+(-xy-2z)-8(pq-pr)+(3pq+pr)
8m-(7m+2)3m-(6m+3q)+(3q+7m)
-2(4n+4)+7n8+(8m+3)+(3m-5)
3(-ab-2a)+(5a-8b)12(abc-5a)-9(6a-6abc)
4(xy+6z)+(-xy+9z)-6(pq+pr)-(5pq+pr)
-6y-(6y-8)7y+(9y+4d)+(4d+3y)
9(7a+1)-5a6+(2y+6)+(7y+10)
8(-ab+9a)+(3a+4b)18(abc-5a)+7(7a+4abc)
5(xy+2z)-(-xy+9z)-6(pq+pr)+(6pq+pr)
6y-(4y+4)y-(7y-9s)-(2s+y)
3(4b+7)-6b6+(5a+10)-(4a-4)
4(-ab-2a)-(4a-9b)8(abc+3a)-9(5a+6abc)
5(xy+2z)+(-xy-9z)-7(pq+pr)-(5pq-pr)
2m-(5m-1)m+(4m+9p)+(4p+m)
3(8a+3)+4a3-(4y-6)+(6y+8)
4(-ab+2a)-(7a+2b)20(abc-2a)-6(4a+3abc)
9(xy-9z)+(-xy+9z)-4(pq+pr)-(8pq-pr)
3m+(8m+4)m+(2m-8c)-(8c-6m)
4(5t+6)+7t6-(8x+10)-(3x-1)
5(ab+3a)-(6a+4b)7(abc+2a)+6(9a+7abc)
2(xy+9z)+(-xy+4z)-4(pq-pr)+(9pq+pr)
-9a-(2a+2)a-(7a+9s)+(4s-2a)
-8(9t+2)+3t8-(9b-8)-(5b+8)
6(ab+6a)-(8a-8b)7(abc+4a)-9(6a+4abc)
2(xy+2z)-(-xy+6z)-9(pq+pr)-(7pq+pr)
4a-(2a+6)a+(8a+9z)+(3z+a)
5(2m+1)-5m9+(4a-10)-(6a-3)
6(ab-6a)-(4a+6b)14(abc+2a)-4(9a+4abc)
5(xy+9z)-(-xy+4z)-3(pq+pr)+(8pq+pr)
-6n+(7n-3)3n+(6n-3q)-(8q-n)
-2(9t+6)+3t9+(4a+5)+(3a+8)
4(ab-2a)+(9a+3b)12(abc+2a)-5(3a-9abc)
8(xy+3z)-(-xy+3z)-9(pq-pr)-(6pq+pr)
2n-(8n+1)6n+(2n+5s)-(4s-3n)
7(3a-8)+5a7-(2m-7)+(6m-5)
9(-ab+7a)-(4a-8b)18(abc+7a)-6(9a+2abc)
4(xy+8z)-(-xy-3z)-3(pq-pr)-(3pq+pr)
3m+(2m+9)3m+(8m+8c)-(7c-7m)
3(2m+7)-8m7-(8b+7)-(9b+2)
5(-ab+2a)+(7a-8b)19(abc+5a)+2(5a+6abc)
8(xy-7z)+(-xy-6z)-9(pq-pr)-(9pq+pr)
5y+(8y+9)6y-(9y-5p)-(9p-y)
9(9a-8)-5a9+(6y+1)+(5y+9)
6(ab-6a)+(7a+9b)6(abc+3a)+3(4a+2abc)
6(xy+8z)-(-xy+2z)-2(pq+pr)+(6pq+pr)
-8n+(4n+1)n+(4n+4d)-(7d+n)
4(4b+5)+6b9-(6a-6)-(2a+9)
4(ab+2a)+(7a-2b)15(abc-9a)+3(3a-8abc)