Question 901996
A part of this set of steps is not fully explained here, so you may need to think about the logic to understand these TWO cases.


Either {{{10x-1>=0}}};
{{{10x-1+5=12}}}
{{{10x=8}}}
{{{x=4/5}}}


OR


{{{10x-1<0}}};
{{{-10x+1+5=12}}}
{{{-10x=6}}}
{{{x=-6/10}}}
{{{x=-3/5}}}


x is an element of  {-3/5, 4/5 }