HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!

Hello !
[tex]\widehat{LMO} +\widehat{MON} + 5x = 360°[/tex]
[tex]90 °+ x + 5x = 360°[/tex]
[tex]90° + 6x = 360°[/tex]
[tex]6x = 360 ° - 90°[/tex]
[tex]6x = 270°[/tex]
[tex]x = \frac{270}{6} °[/tex]
[tex]x = 45°[/tex]