Question 986352
Let {{{x + 2}}} = games you won. Let {{{ x }}}= games you lost.
Set up an equation.

{{{x+2+x=24}}}
{{{2x+2=24}}}
{{{2x=22}}}
{{{x=11}}}

You lost 11 games and won 13 games.
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Check:

{{{11+13=24}}}
{{{24=24}}}