x+24/2*0.5=x x 等于所少
x+24/2*0.5=x x 等于所少
2/x-x+1/x=1 X等于多少
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
2x-5y/x-y等于3/2,x/y得多少?
(x平方加x)(x平方加x 减2) 等于24,X等于多少
2x(5x+3)=3x(5x+3x)中x等于多少
已知函数f(x)={根号x(x大于等于0),-x^2-4x (x
如果(x-a)(x+0.5)=x^2-0.25,那么x等于几
1X+2X+3X…+98X+99X+100X=50500X X等于多少?
(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几?
直线x=2被圆(x-1)²+y²=4所截弦长等于
x^2=17,x等于多少