Question 1154897

{{{4-12x=20}}} 
              
{{{4-12x+12x=12x+20}}}  

{{{4=12x+20}}} 

{{{4-20=12x+20-20}}} 

{{{-16=12x}}}

{{{x=-16/12}}}

{{{x=-4/3}}}



{{{-5y-5=10}}}

{{{5y-5y-5=5y+10}}}

{{{-5=5y+10}}}

{{{-5-10=5y+10-10}}}

{{{-15=5y}}}

{{{y=-15/5}}}

{{{y=-3}}}