Question 395477
Call the numbers {{{a}}} and {{{b}}}
given:
{{{a + b = 12}}}
{{{b - a = -2}}}
Add these equations:
{{{a + b = 12}}}
{{{-a + b = -2}}}
{{{2b = 10}}}
{{{b = 5}}}
and,
{{{5 - a = -2}}}
{{{-a = -7}}}
{{{a = 7}}}
The numbers are 7 and 5