Question 990737

The sum of {{{2}}} numbers is {{{25}}}.
{{{x+y=25}}}........eq.1

One of the numbers exceeds the other by {{{9}}}. 
{{{x=y+9}}}.......eq.2

{{{x+y=25}}}........eq.1...substitute {{{y+9}}} for {{{x}}}

{{{y+9+y=25}}}........solve for {{{y}}}

{{{2y=25-9}}}

{{{2y=16}}}

{{{y=16/2}}}

{{{highlight(y=8)}}}

go to {{{x=y+9}}}.......eq.2.substitute {{{8}}} for {{{y}}}

{{{x=8+9}}}

{{{highlight(x=17)}}}

so, your numbers are: {{{highlight(8)}}} and {{{highlight(17)}}}