How do I rearrange this equation for T?

[mandy9008]

Homework Statement

I need to rearrange the following equation for T. I haven't done this for so long, that it has slipped my mind.

Homework Equations

change in y = Voy t - 1/2 g t²

The Attempt at a Solution

t = (change in y + 1/2) / (Voy - g)

I know this is completely wrong, but I can't, for the life of me, figure it out. :/

 

[rock.freak667]

The Attempt at a Solution[/h2]
t = (change in y + 1/2) / (Voy - g)

I know this is completely wrong, but I can't, for the life of me, figure it out. :/

So you have Δy= v₀t-1/2gt²

this can be written as 1/2gt²-v₀t+Δy = 0

doesn't this look similar to at²+bt+c=0?

now apply the quadratic equation formula.