6-3(x+2)=2(x-1)
(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
5x-3(2x+1)=6x-4(5-3x)求x
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
解方程:6x-3(2-x)=-6+x (x+3)/2=x-(x-1)/6 )
X-(X/2)+(X/3)-(X/4)+(X/5)-(X/6)=1
当x=-(1/2)时,代数式(x)/)x+1)-【(x+3)/(x+1)】*【(2x²+6x)/(x²
(1)6+2(x-3)=X (2)8-2(x-7)=x-(x-4) (3)2x-(1.5x-1)=2(1.5x-1)
9x+6x²-3(x-2/3x²),其中x=-2 1/4(-4x²+2x-8)-(1/2x
先化简,再求值(2x-6)/(4-4x+x^2)÷ (x+3)× (x^2+x-6)/(3-x),其中x=-1/2