(0.4X+56)/(0.6X-56)=5/4
x(x-14)二0*x平方十|2x十27=0,x平方=x+56,x(5x+4)=5x+4,4x平方-45=3|x,-3x
方程 3x(7-2x)+5x(2x-1)=4x(x-3)+56
(x+4)×(x+2)=x²+56
3x(7-2x)+5x(2x-1)=4x(x-3)+56
(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:3x(7-2x)+5x(2x-1)=4x(x-3)+56.
3x(7-2x)+5x(2x-1)=4x(x-3)+56 求X的值
10x乘3+(x+2-4)-(10x+x+2)=56
(先化简后求值)(3x/x+2-x/x-2)+2x/x^2-4,x=4-根号5,
(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)