Calculating Tension in a Stretched String Using Wave Speed

[seker]

Homework Statement

A string whose linear density is 0.00500 kg/m is stretched to produce a wave speed of 85 m/s. What tension was applied to the string.

Homework Equations

v=√(F/(m/L))

The Attempt at a Solution

v=0.00500 kg/m m/L= 85 m/s

I can't seem to re-arrange the equation properly or I am just using the wrong one to begin with.

 

[collinsmark]

Before plugging in any numbers, use algebra to solve the v=√(F/(m/L)) formula for the tension F. [And it might help to treat the linear density (m/L) as its own variable. I'd call it μ, or maybe λ.]