(x-10)+(x+20)+ x/2 +2x=370
(X-X*20%-18-(X-X*20%-18)*10%=X*1/2-3(过程)
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8
f(x)=x²+3x|x-2|
(2x-2)(x-1)=0 x(x-5)=5x-10
f(x)=-x^2+2x(x>0) 0(x=0) x^2-2x(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)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
(x)-2x·x-x-2x+1=0求x的值,
2x(56-X)-10=30+X