First post, so bear with me lol.

Solve the following system of equations using matrix inversion method:

10x + 14y = 818

8x + 11y = 646

Of course, first order of business is to calculate the determinent, which works out to -2 (10 x 11 - 14 x 8 = -2...unless i calculated it wrong.)

My question is where do I go from here that I have a negative determinent, assuming i calculated it right?

Cheers

Ibrox