Question 101885
{{{5t^2-20v=15/w}}} 
{{{5t^2=(15/w)+20v}}} add 20 to each side.
{{{5t^2=(15+20vw)/w}}} lcd=w
{{{t^2=(3+4vw)/w}}} divide both sides by 5
{{{t=+-sqrt((3+4vw)/w)}}} sqrt both sides.
Ed