76x(1/23-1/53)+23x(1/23+1/76)-53x(1/23-1/76)
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76x(1/23-1/53)+23x(1/23+1/76)-53x(1/23-1/76)
![76x(1/23-1/53)+23x(1/23+1/76)-53x(1/23-1/76)](/uploads/image/z/19869837-69-7.jpg?t=76x%281%2F23-1%2F53%29%2B23x%281%2F23%2B1%2F76%29-53x%281%2F23-1%2F76%29)
题目中间个括号内的1/23应该是1/53,否则不太简便哦
76x(1/23-1/53)+23x(1/53+1/76)-53x(1/23-1/76)
=76x1/23-76x1/53+23x1/53+23x1/76-53x1/23+53x1/76
=76/23-76/53+23/53+23/76-53/23+53/76
=(76/23-53/23)-(76/53-23/53)+(23/76+53/76)
=1-1+1
=1
76x(1/23-1/53)+23x(1/53+1/76)-53x(1/23-1/76)
=76x1/23-76x1/53+23x1/53+23x1/76-53x1/23+53x1/76
=76/23-76/53+23/53+23/76-53/23+53/76
=(76/23-53/23)-(76/53-23/53)+(23/76+53/76)
=1-1+1
=1
1%=(17%X-23)/X
x+1 x x x+1
4X*3X+23=(4X+1)(3X+1)-48
解不等式组:2x+5≤3(x+2)x−1<23x
一个数学分式化简题2/x-1-2/x+1-1/x-2+1/x+23/2x+6-1/6-2x+3/9-x^2
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
解下列不等式组(1)4x-15>2x-3.5x-7>3x (2)4-3x<3x-2.x+4>3x (3)15x>23x-
(1+x)/(1-x).
2x−12−2x+53=6x−76−1
(a+x)(1+x)
{2X+1}+{X}
X+1>0 X