Question

\(\dfrac{2x}{18}\)-\(\dfrac{2}{3}\)=\(\dfrac{5}{9}\)

Answer 1

\(\dfrac{2x}{18}\) \(=\) \(\dfrac{5}{9}\) \(+\) \(\dfrac{2}{3}\)
\(\dfrac{2x}{18}\) \(=\) \(\dfrac{11}{9}\)
\(2x . 9\) \(=\) \(18 . 11\)
\(2x . 9\) \(=\) \(198\)
\(2x \)    \(=\) \(198 : 9\)
\(2x\)    \(=\) \(22\)
\(x\)      \(=\) \(22 : 2 = 11\)

Answer 2

giúp mik với

Answer 3

\(\dfrac{2x}{18}-\dfrac{2}{3}=\dfrac{5}{9}\)

\(\dfrac{2x}{18}=\dfrac{5}{9}+\dfrac{2}{3}\)

\(\dfrac{2x}{18}=\dfrac{11}{9}\)

Ta có:

\(2x.9=18.11\)

\(2x.9=198\)

\(2x=198\div9\)

\(2x=22\)

\(x=22\div2\)

\(x=11\)

Vậy \(x=11\)