Equations that have more than one unknown can have an infinite number of solutions. For example, \(2x + y = 10\) could be solved by: \(x = 1\) and \(y = 8\) \(x = 2\) and \(y = 6\) \(x = 3\) and \(y = ...

Be careful to note what a GCSE question is asking. If it states ‘solve algebraically’ then you must do so. To find solutions from graphs, look for the point where the two graphs cross one another.

This is a preview. Log in through your library . Abstract Baltagi [3] derived 2SLS and 3SLS analogues for a simultaneous equation model with error components. These ...

We consider in this note the bias of the residual variance estimator in simultaneous equations according to the k-class method. An unbiased estimator is formulated. Journal Information Econometrica ...