Question 165703
Today,
{{{M=42}}}
{{{F=33}}}
Find X such that,
{{{M-X=2(F-X)}}}
{{{42-X=2(33-X)}}}
{{{42-X=66-2X}}}
{{{X=66-42}}}
{{{X=24}}}
Twenty four years ago the man was
{{{M=42-24=18}}}
while his friend was
{{{F=33-24=9}}}
and 
{{{18=2(9)}}}