\(b,1\dfrac{5}{9}x=\dfrac{28}{29}< =>\dfrac{14}{9}x=\dfrac{28}{29}=>x=\dfrac{\dfrac{28}{29}}{\dfrac{14}{9}}=\dfrac{18}{29}\)
\(c,x:\left(-\dfrac{2}{5}\right)=\dfrac{-15}{16}< =>x=\dfrac{-15}{16}.\dfrac{-2}{5}=\dfrac{3}{8}\)
b, \(\dfrac{14}{9}.x=\dfrac{28}{29}\)
\(x=\dfrac{28}{29}:\dfrac{14}{9}\)
\(\Rightarrow x=\dfrac{18}{29}\)
c, \(x=\dfrac{-15}{16}.\left(\dfrac{-2}{5}\right)\)
\(\Rightarrow x=\dfrac{3}{8}\)