Question 1000345
You can try going along the description part by part.


Andy, now  200 dollars/week.


200 dollars per week is AFTER his pay was tripled.  BEFORE TRIPLING of pay,  Andy had pay  {{{(1/3)200}}} dollars per week.


{{{(1/3)200}}} was {{{2*M}}}, in which M is Mike's pay.


{{{200/3=2*M}}}


{{{M=400/3}}}
{{{highlight(M=133)}}}