Question 1155959
M, amount of money began


{{{M-2M/5=3M/5}}}, still remaining

then, {{{3M/5-(-6+2M/5)=37}}} remained.


{{{3M/5-2M/5+6=37}}}

{{{M/5=37-6}}}

{{{M/5=31}}}

{{{M=5*31}}}

{{{highlight(M=155)}}}


(look for any mistakes.)