(3/4-3/16)x(2/9+1/3)=?
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
1、x*(x+3)*(x+6)*(x+9)=68040 2、x*(x+1)*(x+2)*(x+3)*(x+4)=5544
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
x-1/4x=1/2 16x(3-2/9) x-0.8x=22
9x+6x²-3(x-2/3x²),其中x=-2 1/4(-4x²+2x-8)-(1/2x
六道解方程4×(0.8-x)=1.45+2/3x-1/2x=1210x+9=8x+19115%x+15%x=1.32x-
(x+2分之x+3)-(x+1分之x+2)=(x+4分之x+5)-(x+3分之x+4) 计算x+3分之2x+9-x-3分
解方程:(1)16x-40=9x+16 (2)4x=20/3x+16 (3)2(3-x)=-4(x+5)
(3x^2+9x+7)/(x+1)-(2x^2-4x+3)/(x-1)-(x^3+x+1)/(x^2-1)是不是错了?
解方程1/x(x+1)+1/(x+1)(x+2)+...+1/(x+8)(x+9)=2x+3/x(x+9)
解方程:1\x(x+1)+1\(x+1)(x+2)+.+1/(x+8)(x+9)=2x+3\x(x+9)
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)