(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
初一数学x*x+2x+5的值为7,请求3x*x+6x+3的值.因为x*x+2x2x+3=3x(x*x+2x)+2x+2x
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
5x/(x+3)(x+2)+(2x-5)/(x-4)(x+3)=(7x-70)/(x+2)(x+4)
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
(3x-2)(x+5)-7x(x的2次方-3x+1)
7x+[-3x-3(x-2y)]-[5x-(2x-y)]
7x-3(2/3x+1/5x)-(x+2/5x)+2x 求解?
方程 3x(7-2x)+5x(2x-1)=4x(x-3)+56
化简(-2x^2)+3x+2)-3(7x^2-5x-1)-(4x^2-x+6)
解方程:6x(7-x)=36-2x(3x-5)x是字母x
(2x-7)/(x-5)