Question 971517
e, emily
s, sister
{{{system(e=s-5,e+3=(s+3)/2)}}}


{{{2(e+3)=s+3}}}
{{{2e+6=s+3}}}
substitute
{{{2(s-5)+6=s+3}}}
{{{2s-10+6=s+3}}}
{{{s-4=3}}}
{{{highlight(s=7)}}}


{{{highlight(e=2)}}}------Emily's current age.  She will be 5 year old, in three years.