Solve one of the equations for one of the variables in terms of the other. For example is equivalent to .
Then substitute the expression in for in the second equation.
Solve the resulting single variable equation. You will either get a single answer which you then substitute back in to either of the original equations, or...
You will get a triviality, such as . This means that the solution set of the system has infinite elements, or...
You will get an absurdity, such as . This means that the solution set of the system is the empty set.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it