\(=>\frac{125}{x}+\frac{x}{x}=6\)
\(=>\frac{125}{x}=5\)
\(=>x=25\)
(125 + x) : x = 6
=> 125 + x = 6 × x
=> 6 × x - x = 125
=> 5 × x = 125
=> x = 125 : 5
=> x = 25
\(\left(125+x\right):x=6\)
\(125+x=6x\)
\(5x=125\)
\(x=25\)
Vậy x=25.
Chúc em học tốt^^