Question 1152141

Joe collected {{{x}}} stamps 

 Angela collected {{{y}}} stamps 


if Joe collected three times as many stamps as Angela, we have

 {{{x=3y}}} .......eq.1

Together, they collected {{{360}}} stamps in total:

{{{x+y=360}}} .......eq.2........substitute {{{x}}} from eq.1

{{{3y+y=360}}} 

{{{4y=360}}} 

{{{y=360/4}}} 

{{{y=90}}} 


go to {{{x=3y}}} .......eq.1 ..substitute {{{y}}}

{{{x=3*90}}}

{{{x=270}}}



so, Joe collected {{{270}}} stamps and Angela collected {{{90}}} stamps