10x+20*(5-x)=320
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
X+1-3X=5X+10 6-3X=5X-20
(X-X*20%-18-(X-X*20%-18)*10%=X*1/2-3(过程)
(2x-2)(x-1)=0 x(x-5)=5x-10
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
10*20%+2X*5%=(10+X+2X)
(x-20%x)+5=x-3
帮我解几道方程、、8x-4(10-x)=44 60x+(100-x)*65=100*63 30x-20(180-x)=5
1)x+1/x=3,求x^10+x^5+1/x^5+1/x^10的值
5x+(20-x)=52
(x-6)/(x-5)-(x-7)/(x-6)=(x-9)/(x-8)-(x-10)/(x-9)