Respuesta :

[tex]- \frac{2}{5}x-9<\frac{9}{10} [/tex]
Multiply through by 10 to get,
[tex]-4x-90\ \textless \ 9 \\ -4x\ \textless \ 9+90 \\ -4x\ \textless \ 99 \\ x\ \textgreater \ \frac{99}{-4} [/tex]