4x(3.2x-2.5)=22
x-4x=102 x-0.8x=22
(4x+2)/x+(4x-22)/(x-5)=(x-6)/(x-4)+(7x+9)/(x+1)
解方程:1.x/x+1-1=3/(x+1)(x-2) 2.3/x+2+1/x=4/x²+2x 3.2/3+x/
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
(x-22)+(x-24)+(x-27)+(x-20)=x
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
0.4x+3.2=2.5x+0.05 X是多少
4-x=2(-0.5x²+2.5x-2)
9^x+4^x=2.5*6^x
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
x-4/1x=8/3 x-0.8x=22 3/2x+2/1x=42
解方程:x-4分之一x=8分之3,x等于过程:x-0.8x=22x等于: