what is u=ak/w-v , solve for a

Question

ak over w-v

Answer 1

u = ak/w -v

solve for a

ak/w = u+v

multiply by w

ak = (u+v)w

divide by k

a = (u+v)(w/k)

Unless you really intended the problem to read u = ak/(w-v) then a different answer

ak = u(w-v)

a = (u/k)(w-v)

Answer 2

u = ak/(w-v)

To isolate a multiply both sides by (w-v)/k

a = u(w-v)/k