`x.(2 . 2/3 )=45`
`x. 4/3=45`
`x=45 : 4/3`
`x=135/4`
x . \(\dfrac{\text{4}}{3}\) = 45
x = 45 : 4/3
x =135/4
\(\Leftrightarrow x\cdot\dfrac{4}{3}=45\)
\(\Leftrightarrow x=45:\dfrac{4}{3}\)
\(\Leftrightarrow x=\dfrac{135}{4}\)
Vậy \(x=\dfrac{135}{4}\)
Ta có: \(x\cdot2\cdot\dfrac{2}{3}=45\)
\(\Leftrightarrow x\cdot\dfrac{4}{3}=45\)
hay \(x=45:\dfrac{4}{3}=45\cdot\dfrac{3}{4}=\dfrac{135}{4}\)
\(x.\left(2.\dfrac{2}{3}\right)=45\)
\(x.\dfrac{4}{3}=45\)
\(x=45:\dfrac{4}{3}\)
\(x=\dfrac{135}{4}\)
