5/(x+16.84)=0.2
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
5x+3=x-4,4y+11=22,11x+68-2x=100-9x,0.1x/0.2-(0.27x+0.18)/0.0
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
3/x-1=4/x 6/x+1=x+5/x(x+1)
0.6(4-x)-5(0.2x+0.34)+5.3=0.2x-2/3+ x+5/6=7x-10/3.1/2(3x-5)+
一元一次 x-4/1=3x-3/1.0.6(4-x)-5(0.2x+0.34)+5.3=0.2x-3/2+ x+6/5=
关于一元一次方程的(1)0.6x+0.3=0.9x-0.2 (2)3(x-1)-7(x+5)=30(x+1)(3)(2x
初一数学x*x+2x+5的值为7,请求3x*x+6x+3的值.因为x*x+2x2x+3=3x(x*x+2x)+2x+2x
(x-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少
(先化简后求值)(3x/x+2-x/x-2)+2x/x^2-4,x=4-根号5,
化简(2x-5)(3x+2)-6(x+1)(x-2),其中x=0.2