1 3 4 5 6 8 9 ( )+( )=( )( )X( )=72-( )( )
(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)
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
9x+6x²-3(x-2/3x²),其中x=-2 1/4(-4x²+2x-8)-(1/2x
分式方程:x-7/x-9+x-3/x-5=x-4/x-6+x-6/x-8(要过程、检验)
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)
5x-3(2x+1)=6x-4(5-3x)求x
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
X-(X/2)+(X/3)-(X/4)+(X/5)-(X/6)=1
解分式方程:(x-4/x-5)-(x-5/x-6)=(x-7/x-8)-(x-8/x-9)