This is a mastery practice exercise on simultaneous linear inequalities!
Updated on 2 May, bugs in transferring inequality solutions from CAS to display resolved.
Added hidden controls to enable inequalities to be displayed above number lines.
The method is demonstrated in
https://www.geogebra.org/m/q94pssh5
Updated 29 Sep
Error in solutions when quantities of x are same on both sides of inequalities for one part or both have been corrected. Thanks to Shuk Wai
