Question

T+a/N=F I need to solve for a.

Answer 1

$\begin{gathered} T+\frac{a}{N}=F \\ T+\frac{a}{N}-T=F-T \\ \frac{a}{N}=F-T \\ \frac{aN}{N}=(F-T)N \\ a=N\times(F-T) \end{gathered}$