Date of 1st Monday of an ISOWEEK taking into consideration [Week] & [Year] variable

[Skip2MiLu]

Can someone support me in converting the following excel formula into a AppSheet compatible expression? 

=DATE(G3, 1, 1) + ( H3 - 1) * 7 - WEEKDAY(DATE(G3, 1, 1), 2) + 1