(x-8)(200-40(x-10))=720
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
(x+10)+(X+8)+X\3=36
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x-6)/(x-5)-(x-7)/(x-6)=(x-9)/(x-8)-(x-10)/(x-9)
解方程:(x+8)/(x+7)+(x+10)/(x+9)=(x+7)/(x+6)+(x+11)/(x+10
5*(x-2)=4*(x+3) 2x+(50-x)*4=140 3x-(8-x)=20*4 200x=(x-0.5)*2
(x-8)(200-40(x-10))=720
10x+(8-x)-((8-x)*10+x)=54
若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂)
解方程:1/x(x+2)+1/(x+2)(x+4)+……+1/(x+8)(x+10)=5/24(x+10)
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)