2x + 4(50-x)=50
5*(x-2)=4*(x+3) 2x+(50-x)*4=140 3x-(8-x)=20*4 200x=(x-0.5)*2
2x-3分之1(x+1)=4x-(2x+50%)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
30-3(3-X)=4X 3X+12*6=15X+12 4X-2(50-X)=20 12(X-13)=10(X+3) 1
先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5
解道方程:2x-3分之1乘(x+1)=4x-(2x+百分之50)
20%x+4分之1(x-1)=3x-(2x+50%) 简便计算?
解方程:1、3.5x-34.1=2x 2、x/3=50%+x/4
2X-三分之1(x+1)=4X-(2x+50%)
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x