七年级数学下册整式的加减法计算题 295.docx
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七年级数学下册整式的加减法计算题295
8y2-(5x2+y)-(8x2-7y2)
8
(x2-9xy-—x)+(2x2+xy-5x)
7
16
(—xy-6y2+3)-(x2+—xy+9y2+4)
87
51
(xy-—y-—)+(xy-x+5)
44
(3y-7x-6z2)-(4y+5x+2z2)
(3k2-5k)+(5k2+8k-4)
(4a2-4a+b)-(9a2-6a+5b)
3x2-(9x2-8x-6)-(4x-9)
y2+(3x2-y)-(7x2-2y2)
1
(9x2-7xy-—x)+(8x2+8xy-3x)
6
49
(—xy-6y2+3)+(x2-—xy-8y2-5)
58
59
(xy-—y+—)-(xy-x-9)
68
(4y+4x+9z2)+(3y-9x+2z2)
(9k2-7k)-(6k2+7k+9)
(3a2-4a-6b)-(5a2+3a+6b)
6x2-(4x2-7x-1)+(4x-9)
9y2+(4x2+y)+(9x2-y2)
1
(2x2-2xy+—x)+(3x2+5xy-8x)
7
11
(—xy+8y2+4)-(x2+—xy-8y2+9)
78
61
(xy-—y-—)+(xy+x+9)
76
(8y+7x-5z2)-(9y+6x+3z2)
(5k2+2k)+(2k2-7k-5)
(3a2-5a-6b)+(3a2+9a+6b)
5x2+(5x2+x+3)+(7x-2)
4y2+(7x2-y)-(5x2+9y2)
1
(4x2+xy+—x)-(7x2-xy+6x)
5
64
(—xy+9y2+6)-(x2+—xy-2y2-8)
53
25
(xy-—y-—)-(xy+x-5)
34
(7y-6x-6z2)-(3y-9x-3z2)
(2k2+2k)+(9k2-5k+2)
(7a2+7a-6b)-(6a2-8a+6b)
6x2-(3x2-7x+2)-(x+2)
9y2-(9x2-y)+(3x2+6y2)
5
(8x2+2xy-—x)+(3x2-4xy+4x)
6
61
(—xy-y2+8)-(x2-—xy-8y2+6)
57
41
(xy+—y+—)-(xy-x-4)
55
(5y-9x+7z2)+(3y+x-3z2)
(9k2+k)+(2k2+5k+8)
(4a2+9a-4b)+(3a2-8a+7b)
5x2-(5x2-x-9)-(4x+6)
6y2-(9x2-y)+(9x2-3y2)
7
(7x2+9xy+—x)+(3x2+xy+5x)
6
11
(—xy-2y2-8)-(x2-—xy+6y2-4)
84
81
(xy-—y-—)-(xy-x-4)
75
(2y-6x-3z2)-(8y-4x+2z2)