Let us say that set of simultaneous equations obtained is, as follows :
Then Cramer’s Rule says that form a system determinant Δ or D as,
Then obtain the subdeterminants Dj by replacing jth column of Δ by the column of constants existing on right hand side of equations i.e. C1,C2, … Cn;
The unknowns of the equations are given by Cramer’s Rule as,
where D1, D2,…, Dn and D are values of the respective determinants.