Hello all,

I am new to this forum so I hope I am posting correctly. Its been years since I have done any "real" math, I use math every day but its been just basic formulas and nothing too advanced. I have this formula below that solves for X but I need to solve for Y. I thought this would be simple but for some reason can't seem to crack this nut. Many of my friends have been unable as well. Any suggestions on how to do this?

X=a(d/4y – 1/√2y)

Thanks

BC