Question

[Đinh Châu Anh]

71+ 260=\(\dfrac{x+140}{x}\)+260

tìm x

Answer 1

[Trần Đức Cao Phát]

<=> 71=\(\dfrac{x+140}{x}\)

=>71x=x+140

<=>71x-x=140

<=>70x=140

<=>x=2

Vậy x=2