Příklady z matematiky

                 4x + 3y = -4   / 5

                 6x + 5y = -7   / (-3)

             20x + 15y = -20

           -18x – 15y = 21

                        2x = 1

                          x =1/2

 

 

y =                    =              = -2

 

 

 

L1 =   4       + 3 (-2) = -4

 

P1 = -4

 

 

L2 = 6      + 5(-2) = -7

 

P2 = -7

 

                                            P = [0,5 ; -2]