Question

Tìm số nguyên n khi:

25/5n = 5

Answer 1

\(\frac{25}{5n}\)=  5 

=> \(\frac{25}{5n}\)= \(\frac{5}{1}\)

=> 25 = 5 x 5n 

=> 25 = 25 x n

=> n = 1

Answer 2

ta có:

\(\frac{25}{5n}=5\)

\(=>\frac{25}{5n}=\frac{5}{1}\)

\(=>25=5.5n\)

\(=>25=25.n\)

\(=>n=25:25\)

\(=>n=1\)