Question 111067
{{{12-4h=-18+11h}}}
{{{-4h+12=11h-18}}}
{{{-4h-11h+12=11h-11h-18}}}
{{{-15h+12=0-18}}}
{{{-15h+12=-18}}}
{{{-15h+12-12=-18-12}}}
{{{-15h+0=-30}}}
{{{-15h=-30}}}
{{{h=2}}}


Power up,
HyperBrain!