Question 1170981
---------------------------------------------------------------
Roda is 14 years oldER than her sister Rica. Three years ago, she was three times as old as Rica.
------------------------------------------------------------------


{{{system(d=c+14,d-3=3(c-3))}}}

-

{{{c+14-3=3c-9}}}
{{{c+11=3c-9}}}
{{{2c=20}}}
{{{highlight(c=10)}}}--------------Rica's age today.