七年级数学上册合并同类项练习题精编15.docx
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七年级数学上册合并同类项练习题精编15
5(-ab+4a)-(3a-3b)18(abc-7a)-5(7a+8abc)
5(xy+4z)-(-xy-9z)-9(pq-pr)-(3pq+pr)
-9y+(8y-8)2y+(3y+2p)-(2p+3y)
9(2s-1)-8s2-(6n+3)+(5n+1)
2(ab-8a)+(2a+9b)5(abc-5a)+9(4a-9abc)
8(xy-3z)-(-xy+4z)-9(pq-pr)-(5pq+pr)
8n-(9n-9)5n+(5n-9s)-(7s+n)
-3(7n-6)+5n7+(7x-3)-(9x+5)
3(-ab-9a)-(5a+2b)8(abc+6a)-8(6a-3abc)
4(xy-3z)+(-xy-8z)-3(pq+pr)-(3pq+pr)
-2n+(3n+3)n-(4n-6q)+(3q-7n)
-2(5s+1)+2s5+(7m-7)+(9m+2)
5(ab+8a)-(2a+6b)6(abc-3a)+6(8a+4abc)
2(xy+3z)+(-xy-2z)-9(pq-pr)+(9pq-pr)
-9n+(9n-1)7n-(9n+9p)+(5p-5n)
-7(3n-6)+3n9+(8n-3)+(8n-5)
2(ab+2a)-(6a+8b)11(abc-6a)-3(4a+4abc)
4(xy+4z)+(-xy-9z)-9(pq-pr)+(4pq-pr)
-3m+(8m-7)5m+(9m+7d)-(5d+m)
-2(9b-6)+9b4+(7x+2)-(7x-9)
4(ab+9a)-(3a-8b)5(abc+7a)+4(4a+9abc)
9(xy-7z)+(-xy+8z)-6(pq-pr)+(6pq+pr)
-8n-(4n-7)n+(5n-3d)+(5d-n)
7(2b+4)-8b9+(4x+4)+(8x+7)
6(-ab+3a)+(5a+8b)7(abc+2a)-7(2a-3abc)
9(xy+9z)+(-xy-3z)-3(pq-pr)-(6pq+pr)
-5y-(9y+8)y-(5y+8q)-(4q-6y)
-6(6m+8)-9m4+(2x+8)-(5x-8)
4(ab+9a)-(6a-9b)16(abc-7a)-5(3a-4abc)
8(xy-3z)-(-xy+5z)-4(pq+pr)-(8pq-pr)
-5n-(9n-3)n+(3n-9d)-(7d+7n)
6(2b-4)+8b4-(3y+1)-(5y+7)
9(-ab+3a)+(5a+6b)4(abc-6a)-3(4a-9abc)
8(xy+7z)+(-xy-6z)-5(pq-pr)+(9pq-pr)
8n+(5n+5)n-(3n-7z)+(3z-n)
2(5m+5)-8m1-(5a-1)+(2a-6)
8(ab+5a)-(8a+6b)17(abc-4a)-5(2a-4abc)
4(xy+9z)+(-xy+8z)-4(pq+pr)-(8pq+pr)
-4m-(7m+8)m-(8m+3p)-(4p-5m)
9(4t-9)+8t5+(6x-8)-(8x+9)
2(ab-9a)-(4a-9b)14(abc+3a)-5(6a+6abc)
9(xy+4z)+(-xy-5z)-7(pq+pr)+(3pq+pr)
-2a+(8a-1)a+(7a+9z)+(9z+9a)
-6(2s-8)-8s1+(2x-1)+(3x-6)
5(ab-2a)-(7a+4b)17(abc-5a)+4(8a+9abc)
5(xy+7z)+(-xy-6z)-6(pq-pr)+(6pq-pr)
-4x-(4x-3)9x+(9x-6z)+(8z+x)
-5(4t-4)-3t9+(6b-7)-(2b+6)
7(-ab-5a)-(8a-7b)10(abc-4a)+7(6a+2abc)
7(xy+7z)-(-xy-4z)-5(pq+pr)+(7pq+pr)
3x-(5x-3)x-(9x-9q)+(6q-4x)
-8(6n-6)-3n5+(7x-5)-(6x-7)
5(ab-9a)-(5a-4b)19(abc-6a)-9(9a+4abc)
2(xy+5z)+(-xy+3z)-5(pq+pr)+(8pq-pr)
6y+(2y+4)y-(5y+6s)-(8s+9y)
-6(2t+6)-2t6-(7x-3)+(5x-7)
8(-ab+7a)+(3a+7b)10(abc-6a)-4(4a+7abc)
8(xy+5z)-(-xy-7z)-2(pq-pr)+(3pq-pr)
5b-(8b+5)b+(2b+4d)-(7d+b)
9(9b+3)+3b10+(5x-1)+(7x+3)
2(-ab-6a)-(2a+6b)11(abc+2a)-7(3a-7abc)
5(xy-5z)+(-xy-2z)-8(pq+pr)+(7pq-pr)
4y+(4y+9)y-(4y-8d)+(3d-y)
-2(5a-6)+6a10-(9x-9)+(2x+4)
6(-ab+2a)-(2a+5b)18(abc-6a)+7(6a-9abc)
3(xy-2z)-(-xy-5z)-6(pq-pr)-(4pq+pr)
7m+(5m-2)8m+(6m+9p)+(7p+m)
-4(4b-9)+2b7+(8y+5)+(2y+3)
5(ab-8a)-(4a+2b)19(abc-7a)-4(5a+7abc)
5(xy+6z)-(-xy-2z)-4(pq-pr)-(8pq+pr)
-3x+(7x+6)x-(5x-7q)+(6q+x)
-2(7b-9)+2b10-(5b+10)+(4b+1)
9(ab-5a)-(5a-7b)13(abc+5a)+9(4a-7abc)
8(xy+9z)+(-xy-4z)-9(pq+pr)+(5pq-pr)
-2b-(3b-2)b-(5b-9q)+(6q-2b)