1/x=1/18+1/4x求x
1个回答
1/x-1/4x=1/18
4/4x-1/4x=1/18
3/4x=1/18
所以4x=3*18=54
x=13.5
相关问题
1.(2/18-3/18-1/18)X36 2.(1/4-1/2-1/8)X128 3.[9X(-4)]X(-1/4)
(x-18):(x+18)=1:4
解方程.(1)4x+18=50 (2)[1/4:18=x:110] (3)1.5x-x=1.
1/5x+1/4x*(x-1/4x)=18怎么解?
已知√x -(1/√x)=1,求√(x²+1/x²+18)的值.
1 x-1 x--减-----=---+18 2 4
1X3/1+2X4/1+3X5/1+.+18X20/1=?
化简:1/√x(√x+2)+1/(√x+2)(√x+4)+...+1/(√x+18)(√x+20)
1/3X+1/4X+18=3/4X 怎么解
1/3X+1/4X+18=3/4X 怎么解