七年级数学上册合并同类项练习题精编43.docx
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七年级数学上册合并同类项练习题精编43
4(-ab+3a)+(9a+6b)5(abc-8a)-6(3a-5abc)
3(xy-9z)-(-xy-9z)-2(pq+pr)-(2pq+pr)
-7y-(2y+5)9y+(6y+7c)-(3c-y)
8(2s-3)-7s6-(6y-1)+(6y-1)
4(-ab+2a)+(8a-7b)3(abc+2a)-2(4a-7abc)
3(xy-8z)+(-xy-4z)-5(pq-pr)-(2pq+pr)
8b+(6b+9)b+(6b-4s)+(4s-b)
-2(6m+8)+3m6+(7m+9)+(7m+5)
4(-ab+7a)+(3a+9b)18(abc+8a)+3(3a+4abc)
3(xy+2z)+(-xy+6z)-9(pq-pr)+(5pq+pr)
8a-(3a-7)4a-(5a-9p)+(8p-a)
3(3a-9)+6a9+(4m+1)+(9m+10)
8(-ab+3a)-(6a+4b)12(abc-2a)+8(6a-2abc)
4(xy-7z)-(-xy+7z)-8(pq+pr)-(4pq-pr)
-3n+(3n-5)n-(9n-9s)-(7s+8n)
7(2m+10)+5m5+(3n+8)+(5n-6)
2(-ab+8a)-(7a-4b)20(abc-6a)-3(9a-6abc)
5(xy+7z)+(-xy-2z)-6(pq-pr)-(3pq+pr)
-8m-(7m+6)7m+(8m+5s)-(9s+m)
7(5a-5)-6a2-(3a+10)-(3a+9)
9(-ab-7a)-(3a+4b)12(abc+5a)+5(2a-9abc)
9(xy-9z)+(-xy+2z)-7(pq-pr)+(6pq+pr)
8n+(7n-5)n+(2n+8p)+(3p+n)
5(7s-2)-8s3+(3b+5)-(7b+10)
9(-ab+4a)-(3a-2b)11(abc+2a)-3(3a+7abc)
9(xy-7z)-(-xy-8z)-4(pq-pr)-(9pq+pr)
9a-(3a+4)6a+(7a+4q)+(9q-5a)
-4(3t+10)-6t4-(8n+8)+(5n+7)
7(ab-4a)+(4a-8b)5(abc+9a)-4(5a+6abc)
2(xy-7z)-(-xy+9z)-3(pq+pr)-(5pq-pr)
-7b-(2b-2)2b+(2b+5c)+(4c-2b)
5(2b-7)+2b8+(2b+7)-(5b-7)
6(ab+8a)+(2a+8b)12(abc+7a)+6(5a-4abc)
9(xy+4z)+(-xy+5z)-4(pq+pr)-(4pq+pr)
4x-(4x-4)5x-(2x-8c)+(5c+x)
-5(2m-9)+3m10-(4b-2)-(9b-7)
6(-ab-7a)-(4a-2b)17(abc+4a)-4(3a-7abc)
7(xy+8z)+(-xy-4z)-5(pq-pr)-(4pq+pr)
-6b-(8b+8)b+(9b-2z)+(6z+3b)
9(4n-10)-8n8-(7b-10)-(6b+7)
5(-ab+2a)+(4a-8b)16(abc+6a)-8(9a-2abc)
9(xy-7z)-(-xy+9z)-7(pq+pr)+(6pq-pr)
-8m+(4m-2)m-(7m-5s)-(7s-9m)
8(3n+3)-2n4-(3y+4)+(6y-6)
6(ab+4a)-(3a-5b)11(abc+3a)-8(3a-2abc)
3(xy+3z)-(-xy-2z)-6(pq-pr)+(8pq-pr)
-7n+(7n+6)4n+(6n+3s)+(8s+n)
5(3a+3)-5a9-(3y-4)-(9y-7)
9(ab-2a)-(2a+6b)8(abc-8a)+9(6a+6abc)
6(xy-8z)+(-xy+6z)-3(pq+pr)+(8pq+pr)
5y-(4y+6)y-(3y+4c)-(5c-3y)
-4(9m+5)+3m4-(2y+8)+(2y+2)
8(-ab+6a)+(9a-8b)7(abc-3a)+7(6a+4abc)
3(xy+2z)-(-xy-6z)-4(pq-pr)+(2pq+pr)
-9x-(4x-3)x+(5x+4q)-(7q+8x)
5(2n+10)+2n2+(7m-3)+(4m-4)
9(ab+3a)+(3a-2b)14(abc-4a)+7(5a-3abc)
5(xy+9z)-(-xy+8z)-7(pq+pr)-(5pq-pr)
6x+(7x+3)x+(8x+5q)+(8q-3x)
-6(9n-5)-6n3-(2y-3)-(2y-4)
4(-ab+7a)-(2a-9b)14(abc-7a)+6(5a-7abc)
5(xy+6z)-(-xy-3z)-4(pq+pr)-(7pq-pr)
3x+(7x-1)x-(5x+4d)-(4d+x)
-9(6b-9)-4b4+(8m-2)-(2m+5)
3(ab+4a)-(3a-2b)11(abc-2a)-5(5a-6abc)
4(xy+8z)+(-xy-9z)-8(pq-pr)+(5pq+pr)
-9b-(3b+3)b-(6b-8c)-(6c-6b)
-5(6n-5)+2n1+(9m-1)-(5m-2)
9(ab+6a)-(5a+6b)2(abc-5a)-6(9a-9abc)
4(xy+9z)-(-xy+2z)-9(pq-pr)-(9pq-pr)
9y-(5y+8)5y-(9y-8z)-(8z+y)
-4(7m-5)+9m3+(3x-10)-(9x+9)
3(-ab+8a)+(6a+6b)12(abc-5a)-3(7a-4abc)
7(xy+4z)+(-xy-8z)-9(pq+pr)+(3pq-pr)
-3m-(2m-9)m-(4m+6z)+(2z-6m)