150(x-1)-25=2(4-20x)-75;6(2x+3)=3(1-x)-2(x-2).
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
1、x*(x+3)*(x+6)*(x+9)=68040 2、x*(x+1)*(x+2)*(x+3)*(x+4)=5544
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
5x-3(2x+1)=6x-4(5-3x)求x
4(x+3)=2x+2 7(x-1)=2x+3 4x+20=6x-30 4x-12=2x 2x-3=x+7 3x-4=2
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
X-(X/2)+(X/3)-(X/4)+(X/5)-(X/6)=1
x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28
先化简再求值:(x+2/x²-2x - x-1/x²-4x+4)÷ x-4/x,其中x=3/2