Question 894306
A and B present or current ages.


{{{A+10=2(B+10)}}}
{{{A+10=2B+20}}}
{{{A-2B=10}}}


{{{A-5=3(B-5)}}}
{{{A-5=3B-15}}}
{{{A-3B=-10}}}


Solve the system for A and B:
{{{highlight(system(A-2B=10,A-3B=-10))}}}