Make t the subject : s= [(u+v)t] / 2
\(s=\frac{(u+v)t}{2} \ \ |*2\\\\ 2s=(u+v)t \ \ |:u+v\\\\ t=\frac{2s}{u+v}\)
Multiply both sides by 2/(u + v) to get.. t = 2s/(u + v) If you are solving for u, then... s = t(u + v)/2 Multiply both sides by 2/t to get.. 2s/t = u + v Hence, by subtracting both sides by v, we obtain: u = (2s/t) - v I hope this helps!
