Quite often in mathematics we want to change which letter is the subject of the formula, the method for doing this is very similar to how we solve equations. We need to isolate \({t}\) so that it ...

and to demonstrate that the general equation of any degree higher than the fourth cannot be solved by an algebraic formula. It is strange that no reference is given to the work of Kronecker and ...

The subject of a formula is the variable that is being worked ... this letter by inversing any other items on this side of the equation. Next to the \(u\), there is also a \(+ at\).