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\(15-\left(x-133\right)=17.\)

    \(-\left(x-133\right)=17-15\)

    \(-\left(x-133\right)=2\)

           \(x-133=-2\)

                      \(x=-2+133\)

                      \(x=131.\)

\(Vậy...\)

\(\dfrac{4}{9}-\dfrac{2}{3}x=\dfrac{1}{3}.\)

\(-\dfrac{2}{3}x=\dfrac{1}{3}-\dfrac{4}{9}\)

\(-\dfrac{2}{3}x=-\dfrac{1}{9}\)

\(-2x=3\cdot\left(-\dfrac{1}{9}\right)\)

\(-2x=-\dfrac{1}{3}\)

\(x=-\dfrac{1}{3}:\left(-2\right)\)

\(x=\dfrac{1}{6}.\)

\(Vậy...\)