Question 944456
Let the other number be {{{X}}}.
If {{{X>3}}},
{{{3X=6(X-3)}}}
{{{3X=6X-18}}}
{{{-3X=-18}}}
{{{X=6}}}
.
.
If {{{X<3}}},
{{{3X=6(3-X)}}}
{{{3X=18-6X}}}
{{{9X=18}}}
{{{X=2}}}