Question 1152559

let Ralph's age be {{{x}}} and Rick's age {{{y}}}

if Ralph is {{{10}}} years younger than {{{3}}} times Rick's age, we have

{{{x=3y-10}}}.....eq.1

if Ralph is  {{{53}}} years old,then 

{{{53=3y-10}}}.......solve for {{{y}}}

{{{53+10=3y}}}

{{{63=3y}}}

{{{y=63/3}}}

{{{y=21}}}

=> Rick is {{{21}}} years old