Question

tìm y thỏa mãn :

aaa : 37 x y = a

Answer 1

\(aaa\div37\times y=a\)

\(\Leftrightarrow\frac{aaa}{37}\times y=a\)

\(\Leftrightarrow y=a.\frac{37}{aaa}\)

\(\Leftrightarrow y=\frac{37}{111}\)

\(\Leftrightarrow y=\frac{1}{3}\)

Vậy  \(y=\frac{1}{3}\)

Answer 2

\(aaa\div37\times y=a\)

\(a\times111\times\frac{1}{37}\times y=a\)

\(111\times\frac{1}{37}\times y=a\div a\)

\(111\times\frac{1}{37}\times y=1\)

\(y=1\div111\div\frac{1}{37}\)

\(y=\frac{1}{3}\)