七年级数学上册合并同类项练习题精编298.docx
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七年级数学上册合并同类项练习题精编298
9(xy+7z)-(-xy+3z)-2(pq-pr)-(7pq-pr)
2m-(9m+7)3m+(4m+9s)-(3s+m)
9(6n-5)-7n4+(4b-9)+(4b+2)
8(ab+3a)-(8a-6b)17(abc+9a)-2(9a-5abc)
2(xy-3z)-(-xy+9z)-5(pq+pr)+(8pq+pr)
6n-(4n-3)5n+(7n-4d)+(4d-n)
3(2a+2)-5a8+(5x-2)-(8x-7)
7(-ab+5a)-(2a+8b)16(abc-9a)+8(4a-2abc)
9(xy-7z)+(-xy-3z)-7(pq-pr)-(2pq+pr)
-3x+(9x+9)7x-(7x+9p)-(2p-6x)
7(9t-6)+8t2+(2x-7)-(5x-7)
9(ab+5a)+(2a-2b)6(abc+3a)-7(4a-7abc)
8(xy-5z)+(-xy+3z)-5(pq-pr)+(5pq-pr)
4y-(3y+5)y-(8y-4p)+(5p-y)
-4(6s+7)+4s7-(3b-9)-(2b+3)
2(ab+4a)-(7a-8b)15(abc-7a)+2(9a+3abc)
5(xy+3z)+(-xy-6z)-9(pq-pr)-(4pq-pr)
-4m-(3m-5)6m-(8m-8s)-(5s+7m)
3(4b-8)-3b9+(5n-6)-(3n+7)
9(ab+4a)+(7a+9b)13(abc+9a)-9(7a-2abc)
5(xy-6z)-(-xy-6z)-4(pq+pr)+(5pq-pr)
2y-(5y+7)y+(9y-5q)+(2q+3y)
9(6t+6)-8t3-(5b-9)+(6b-2)
6(ab+6a)-(5a-7b)11(abc+8a)+4(9a-5abc)
2(xy+7z)+(-xy+9z)-4(pq-pr)+(9pq+pr)
7m+(2m-2)6m-(7m+7d)-(9d+m)
-4(4m-5)-2m7-(9n+8)+(3n+10)
6(-ab-8a)+(6a+8b)19(abc+5a)+6(8a+9abc)
5(xy+9z)+(-xy+2z)-2(pq-pr)-(7pq-pr)
-5m+(2m+9)3m-(2m+7q)+(8q-m)
4(6a+5)+5a6+(7b-5)+(6b-1)
2(-ab-8a)+(5a-4b)4(abc+9a)+3(6a+9abc)
5(xy+4z)-(-xy+5z)-5(pq+pr)-(8pq+pr)
-2b+(5b+7)9b+(6b+2d)-(6d+3b)
6(5b+4)+4b8+(6b+10)-(9b+5)
9(-ab+2a)-(6a+2b)4(abc+8a)+3(7a-3abc)
3(xy-3z)-(-xy+5z)-5(pq+pr)+(5pq-pr)
5y+(9y+8)9y+(9y-8z)-(8z-5y)
4(4n+2)-6n10-(5x+6)+(2x+10)
4(ab+3a)+(5a-6b)20(abc-7a)-7(7a+4abc)
2(xy+9z)+(-xy-7z)-9(pq+pr)+(4pq-pr)
2x+(3x+6)x-(4x+4p)-(4p+3x)
6(2n-5)+2n8-(6m+2)+(7m+10)
6(ab-9a)-(3a-5b)3(abc+4a)-7(9a+2abc)
6(xy+2z)-(-xy-4z)-5(pq+pr)-(5pq-pr)
7y-(8y-8)5y-(2y+9s)+(3s+4y)
4(4n+2)-3n3-(3y-5)-(8y+4)
2(-ab-5a)-(7a-6b)10(abc+5a)+8(6a+8abc)
2(xy+3z)+(-xy+9z)-7(pq-pr)+(3pq+pr)
4a+(4a+6)a-(5a+6z)+(6z+2a)
-2(3b+1)-3b7+(8a-8)+(9a+10)
5(ab+6a)-(5a-4b)14(abc-2a)+7(6a-4abc)
5(xy-6z)-(-xy-7z)-7(pq+pr)-(6pq+pr)
-7y-(4y-4)8y+(4y+6q)-(6q+y)
5(7t-4)+4t8+(4y+10)-(6y-4)
3(ab-9a)-(2a-7b)17(abc+9a)+2(9a-7abc)
2(xy+3z)+(-xy+8z)-9(pq-pr)+(2pq-pr)
-8m+(3m+7)m-(4m-6p)+(9p-7m)
-4(5t+8)-9t3-(8m-1)-(2m+1)
7(ab-9a)+(2a-3b)5(abc-5a)+4(6a-4abc)
9(xy+9z)+(-xy-8z)-8(pq-pr)-(8pq+pr)
6a-(5a-3)a-(5a+2q)-(3q-a)
-4(9b+10)-9b6-(6m-9)-(7m-7)
9(ab-6a)+(3a+9b)15(abc-6a)+6(5a+5abc)
7(xy+4z)-(-xy+7z)-4(pq+pr)+(7pq+pr)
-3n+(6n-6)n+(7n+8c)+(4c+n)
4(4t-5)+9t4-(9m+5)+(3m+4)
5(ab-9a)-(4a+8b)19(abc+9a)+5(4a-2abc)
2(xy+2z)+(-xy+7z)-9(pq-pr)-(7pq+pr)
-3b+(2b+8)b-(9b-5s)+(2s-6b)
6(2m-6)+8m7+(4n+5)+(9n+7)
3(ab+9a)-(2a+7b)12(abc+5a)+7(9a+6abc)
9(xy+8z)-(-xy+8z)-4(pq-pr)-(9pq+pr)
-4x+(8x+1)9x-(9x-7s)-(9s-4x)
5(6s+6)+9s1-(2y-1)-(8y-7)