七年级数学上册合并同类项练习题精编266.docx
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七年级数学上册合并同类项练习题精编266
2(xy-9z)+(-xy-2z)-6(pq+pr)-(5pq-pr)
3m+(4m-2)m-(5m-3q)+(6q-m)
4(2m+1)-9m6-(5a-9)+(3a+7)
9(-ab+9a)+(4a-4b)7(abc+3a)+3(9a+4abc)
8(xy-8z)-(-xy-3z)-4(pq+pr)+(3pq+pr)
-4a-(5a+4)a+(8a-6d)+(8d+4a)
-4(3m+10)-7m3-(9x-2)-(6x-8)
2(-ab-5a)+(7a+8b)14(abc-8a)+7(2a-6abc)
5(xy+8z)-(-xy+3z)-5(pq+pr)+(3pq-pr)
5x-(3x-1)x-(8x-2s)-(3s+x)
-9(8s-1)+4s4-(6b+2)+(5b+10)
6(-ab+4a)+(4a-2b)10(abc-3a)+4(2a-8abc)
7(xy-7z)-(-xy+8z)-5(pq-pr)-(9pq+pr)
-7a+(2a-8)4a-(5a+9z)-(3z+a)
6(8s+9)-8s5+(8m-3)-(5m-2)
6(-ab+5a)-(4a-8b)18(abc+3a)+7(2a-2abc)
2(xy-4z)-(-xy+6z)-7(pq+pr)-(3pq+pr)
4n-(2n+4)n+(5n+7d)+(3d-3n)
7(2n-4)-2n8-(6a+4)-(4a+5)
8(-ab-8a)-(6a-8b)13(abc-4a)-3(8a-6abc)
6(xy+6z)+(-xy+6z)-7(pq-pr)-(3pq-pr)
5y-(2y-6)9y+(3y+5z)+(5z+y)
8(5a-7)+4a2+(7x+10)+(8x-6)
3(-ab+4a)-(6a-4b)3(abc-3a)+3(6a+5abc)
7(xy-9z)-(-xy+5z)-3(pq+pr)+(3pq-pr)
8b-(5b-9)b-(5b-8d)-(3d-3b)
8(6b+4)-2b6-(6a+3)-(8a+1)
3(-ab+3a)+(4a-4b)20(abc+4a)-3(8a+4abc)
8(xy+3z)+(-xy+9z)-5(pq+pr)+(8pq+pr)
3a+(4a+5)a-(3a-7s)-(2s+5a)
2(4t-6)+3t8-(3x-2)+(9x-6)
4(ab+5a)-(6a+8b)10(abc+7a)+5(4a+7abc)
2(xy-6z)-(-xy+5z)-9(pq-pr)-(9pq-pr)
-8x+(4x-2)x-(9x+3z)-(9z-x)
-2(4m+4)-6m4+(3y+2)+(6y+10)
7(ab-3a)-(5a-4b)2(abc+9a)+5(9a+3abc)
7(xy-8z)-(-xy+3z)-7(pq-pr)-(8pq-pr)
4x-(4x-3)x+(2x-6s)-(7s-2x)
9(7t-10)-7t5+(2m+5)+(8m+7)
8(ab+2a)+(4a-4b)13(abc-2a)-7(5a+5abc)
5(xy-6z)-(-xy-8z)-3(pq+pr)-(6pq+pr)
5n+(8n+4)n-(8n+8s)+(5s+n)
3(5m+2)-5m7-(3x-6)-(7x-10)
3(ab-7a)+(2a-9b)19(abc+7a)+6(2a-7abc)
2(xy-7z)-(-xy+2z)-3(pq+pr)+(6pq-pr)
6b+(7b-8)6b+(7b+6z)+(3z+3b)
-7(5m-6)+8m6+(7x+6)+(2x+3)
9(-ab+8a)+(5a+9b)2(abc-3a)+5(8a-8abc)
9(xy+5z)-(-xy+6z)-6(pq+pr)+(8pq+pr)
-7b-(7b-3)7b+(6b+7d)-(4d-9b)
9(6t-5)-6t7+(7a-6)+(6a+6)
2(-ab+5a)+(6a-5b)4(abc+4a)-8(6a+7abc)
4(xy-5z)+(-xy-4z)-4(pq-pr)+(3pq+pr)
7a-(4a-6)8a+(9a+3z)+(3z-5a)
7(5s-7)+4s2-(5m-8)-(3m-9)
7(ab-2a)+(8a+9b)10(abc+5a)+6(7a-7abc)
9(xy-4z)+(-xy-8z)-4(pq+pr)+(2pq+pr)
3m-(2m+2)5m+(9m+4s)-(6s-m)
5(4b+10)+8b9+(7y+6)+(3y+4)
5(ab+2a)+(8a+6b)16(abc-4a)-9(7a-8abc)
9(xy+9z)-(-xy+7z)-6(pq+pr)+(7pq+pr)
2a-(2a-2)6a-(6a-6p)+(7p+2a)
-8(9a-4)-7a1+(7a+3)+(6a+6)
5(ab+9a)+(6a-6b)8(abc+5a)-4(2a-5abc)
7(xy-8z)+(-xy+3z)-4(pq-pr)-(5pq-pr)
8n+(2n+2)4n+(8n+8d)-(5d-7n)
9(9a-3)+8a5+(2m+2)-(2m+4)
5(-ab-7a)-(4a-3b)8(abc-6a)-4(9a+4abc)
2(xy-5z)+(-xy-5z)-2(pq-pr)-(6pq+pr)
-2y-(6y-7)3y-(8y-9p)+(5p+y)
5(9m-9)+7m3+(7x-4)-(3x+2)
6(ab-5a)-(6a+2b)6(abc-5a)-2(8a-9abc)
3(xy+7z)+(-xy+9z)-8(pq-pr)+(3pq-pr)
-5y+(9y+4)2y+(4y-5z)+(6z-4y)
-8(3a+9)+7a7+(4n+6)+(2n-2)