(36+x)÷2/5=120+x
(36+x)÷2/5=120+x
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
解方程:6x(7-x)=36-2x(3x-5)x是字母x
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
(x-5)+(x+5)+2x+(x÷2)=180的解
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
已知x²+3x-1=0 求(x-3)÷(3x²-6x)÷(x+2-[5÷(x-2)])的值
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
已知x²+3x-1=0,求(x-3)/(3x²-6x)÷(x+2-5/(x+2))的值
(x-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少
6÷(x-1)+3÷x=(x+5)÷(x∧2-x)