I tried plugging these cubic and quadratic equations into Wolfram Alpha and Symbolab but both said the same thing, too much computing time required. Now I am struggling to solve these equations and I need help on a method to somehow manage to solve them without the brute force method of elimination or substitution. Do I need to possibly simplify them down more? Thanks in advance!
[The system of equations][1]
quartics
. it is very simple to eliminate all variables but $\beta$ (done by hand). $\endgroup$