Systems of equations with many equations, more than 3

[Crazyhorse2882]

I'm doing quadratics and I broke down some data into 8 systems of equations and I was wondering what the best way to solve this was. Someone online mentioned doing Gaussian Matrix but I don't know what that is. Any suggestions?

 

[hilbert2]

If the system consists of linear equations, you can write it in matrix form and use Gaussian elimination, see http://en.wikipedia.org/wiki/Gaussian_elimination . Usually systems of more than four equations are solved with a computer, though.