Question 1040222
Let X be the number.
{{{-X=8+2*X}}}
{{{-3X=8}}}
{{{X=-8/3}}}
Verifying,
{{{-(-8/3)=8+2(-8/3)}}}
{{{8/3=8-16/3}}}
{{{8/3=24/3-16/3}}}
{{{8/3=8/3}}}
True, so it's a good solution.