Question 1062269
s=26
s=j+8
-
{{{26=j+8}}}
{{{j=26-8}}}
{{{j=18}}}
Current ages are  {{{system(s=26,j=18)}}}.



x, how many years ago


{{{s-x=3(j-x)}}}
{{{s-x=3j-3x}}}
{{{s=3j-2x}}}
{{{s-3j=-2x}}}
{{{highlight_green(x=(3j-s)/2)}}}
Current ages s and j are already solved or known now, so substitute.


{{{x=(3*18-26)/2}}}


{{{x=3*9-13}}}


{{{x=27-13}}}


{{{highlight(x=14)}}}
Fourteen years ago