Question 265112
{{{5+((-20)/(-7-(-3*4)))}}} this is what i understand your problem resembles.
{{{5+((-20)/(-7-(-12)))}}}
{{{5+((-20)/(-7+12)))}}}
{{{5+((-20)/(5))}}}
{{{5+(-4/1)))}}}
{{{5-4}}}
{{{1}}}