2(X÷3+1)+5=2(X÷5+1)+115
((x²-5x+6)/(12-7x+x²))²÷((x²+3x+2)/(x
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
5x(3x-2)-(x+1)
x-2/x-1÷(x+1-3/x-1)
(X-1)^3(x-2)(x-3)^2(x-5)
1/(x+3)-(x-2)/(x^2-5x+6)
x(2x-1)=-3x(x+1)+5x²+3