Question 1052164
m and s age now

age five years ago
m-5
s-5

age six years from no

m+6
s+6


{{{m-5}}}={{{2(s-5)}}}
{{{m+6+s+6}}}={{{82}}}

re-arrange
{{{m-2s}}}={{{(-5)}}}
{{{m+s}}}={{{70}}}

*[invoke linear "m", "s", 1, -2, -5, 1, 1, 70 ]