I need help with solving the matrix, I googled but I just don't understand. Found a good site (http://www.purplemath.com/modules/mtrxinvr.htm) but my English isn't that great.
I really want to know how to solve the matrix, please can anyone solve this with the details attached; so I can see how you did it.
The matrix I want to solve goes like this:
I don't know if this is die-hard for 'the math is fun forum', but I'm just a curious beginner, please help me out.