8(17.2-x)=24
8(17.2-x)=24
已知8x-2.5*0.8x=24,那么0.38x+1.2x=( );已知6x+4x=8,那么70x-( )=29.5
解方程:1/x(x+2)+1/(x+2)(x+4)+……+1/(x+8)(x+10)=5/24(x+10)
1/(x+2)(x+4)+1/(x+a)(x+6)+1/(x+6)(x+8)=2/(3x+24) 解方程
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
30X-2X=84 5.8X-X=60 6.6X-5X=8 4X-X=24 1.5X-X=1
24x+9.6x=84 14.3x-7.6x=33.5 7x+8x-10x=70
(x/8+x/12)*3+(x/12+x/24)y=x怎么解,
解方程1/x(x+1)+1/(x+1)(x+2)+...+1/(x+8)(x+9)=2x+3/x(x+9)
解方程:1\x(x+1)+1\(x+1)(x+2)+.+1/(x+8)(x+9)=2x+3\x(x+9)
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8