Question 884063
To solve this, you want to isolate your variable. To do so, you must divide both sides by -6/5.

{{{42=-6/5(w)}}}
{{{42/(-6/5)=(-6/5)(w)/(-6/5)}}}

 When you have division of fractions, you can multiply by the reciprocal...

{{{42*(-5/6)=(-6/5)(w)*(-5/6)}}}remember multiply fractions across, and your negative will cancel out so you get {{{30/30}}} here, which is 1
{{{-210/6=1w}}} 
{{{w=-35}}}

check it 
{{{-35*(-6/5)=42}}}