260÷-260÷(X+3)=6

问题描述:

260÷-260÷(X+3)=6
说错了,是260÷X-260÷(X+3)=6

260÷X-260÷(X+3)=6
方程两边同时乘以x(x+3)得
260(x+3)-260x=6x(x+3)
260*3=6x(x+3)
130=x(x+3)
x^2+3x-130=0
(x-10)(x+13)=0
x=10或x=-13