(1-3/5)x=(1-40%)(100-x) 还有(1+4/7)x=(1-40%)(x+18)
(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)
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
方程 3x(7-2x)+5x(2x-1)=4x(x-3)+56
若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂)
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28
5x-3(2x+1)=6x-4(5-3x)求x
x+1分之x+2减去x+3分之x+4=x+5分之x+6减去X+7分之x+8 (解方程)
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
[x(x+1)+x平方(x-1)]+(-3x)