Question

How do I use matrices to solve the system `2x+3y=4` and `5x+8y=11`?

Answer 1

You can use Cramer's rule, where you use matrices obtained using the coefficients of the unknowns and the corresponding determinants.

Explanation:

You can use Cramer's rule, where you use matrices obtained using the coefficinets of the unknowns, and the determinants;

Where `A` is the matrix of the coefficients of the unknowns, `A_x` is the same matrix but with the first column substituted with the coefficients of the independent terms (numbers without `x` or `y`) and `A_y` is again the same as `A` but with the second column substituted.

This is better than the previous Video.
Cramer's Rule