七年级数学下册整式的加减法计算题 582.docx
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七年级数学下册整式的加减法计算题582
71
(xy-—y+—)-(xy+x-8)
84
(6y-5x-8z2)-(2y+2x+3z2)
(7k2+9k)-(k2-9k-1)
(6a2-7a-8b)+(9a2-9a-5b)
4x2+(4x2+6x+2)-(5x-4)
6y2+(4x2+y)+(2x2+y2)
8
(2x2+8xy-—x)-(5x2-8xy-x)
7
46
(—xy+9y2+3)+(x2+—xy+2y2+3)
35
11
(xy+—y+—)+(xy+x-8)
64
(6y-9x-5z2)-(3y-6x-z2)
(3k2-2k)+(7k2+9k+7)
(8a2-4a+3b)-(7a2-6a-b)
4x2+(2x2+4x+1)-(2x-3)
6y2-(7x2+y)+(7x2+4y2)
1
(2x2-3xy-—x)+(2x2-3xy-3x)
7
91
(—xy-5y2+7)-(x2+—xy+6y2-9)
86
54
(xy+—y+—)+(xy+x-6)
63
(8y-3x-3z2)+(5y+3x-2z2)
(6k2+2k)+(6k2+5k+8)
(8a2-9a-8b)+(2a2+3a-4b)
3x2-(8x2+9x+5)+(6x+9)
y2-(6x2+y)-(6x2-3y2)
1
(6x2+9xy+—x)+(3x2-2xy-5x)
8
55
(—xy-4y2-6)+(x2+—xy-9y2-6)
46
71
(xy+—y+—)+(xy+x+9)
64
(4y-3x-7z2)+(5y-4x+6z2)
(9k2+9k)-(9k2+5k+1)
(4a2-4a+6b)-(a2-5a+6b)
7x2-(5x2+3x-7)+(8x+8)
2y2-(7x2+y)-(6x2+7y2)
1
(7x2-3xy+—x)-(5x2-5xy-3x)
7
71
(—xy-3y2-7)+(x2-—xy-7y2+8)
83
72
(xy-—y+—)+(xy-x+1)
63
(5y+6x+z2)+(8y-3x+3z2)
(2k2-2k)+(2k2+5k-1)
(7a2-7a+6b)-(6a2+3a-2b)
6x2-(3x2+x+4)-(3x-9)
6y2-(3x2+y)+(6x2+9y2)
1
(2x2+2xy+—x)+(2x2-xy+6x)
6
11
(—xy-2y2+8)+(x2+—xy+3y2+7)
55
15
(xy+—y+—)-(xy-x+8)
64
(8y+5x+4z2)-(2y-6x-7z2)
(6k2-9k)-(2k2-7k+2)
(a2-7a+5b)+(5a2+a-2b)
3x2-(9x2-9x-4)+(5x+7)