(1-5/2)X+15.2=80%X
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
(x-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28
(2x-2)(x-1)=0 x(x-5)=5x-10
5x-3(2x+1)=6x-4(5-3x)求x
解方程:(x分之x-1)-(x+1分之1-x)=(2x+2分之5x-5)
x分之(x-1)-(x+1)分之(1-x)=2x+2分之5x-5
f(x)=|x+1|+|2x+1|+|3x+1|+|4x+1|+|5x+1|最小值?