Question 1140298
m, Mother
r, Rudy

Description Part gives this starting system: {{{system(m=3r,m-2=4+3(r-2))}}}


Using second equation
{{{m-2=4+3r-6}}}
{{{m-2=3r-2}}}
{{{m=3r}}}


This means the system is just one equation in two unknown variables:
{{{highlight_green(m=3r)}}}



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How old will each of them be in ten years time?
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Mother, {{{m+10}}}
Rudy, {{{3r+10}}}