Online calculator which will help you to solve linear equation by matrix method.
Matrix method applied in solving systems of linear equations, where the number of unknowns equals the number of equations, i.e. systems of linear equations with a square matrix of coefficients at unknowns.
Another condition of applicability of the matrix method is the nondegeneracy of the matrix of coefficients of the unknown, that is, the inequality to zero of the determinant of this matrix.