Respuestas

2012-04-15T09:22:28+02:00

                                                                         5x-10x=5-6

                                                                          -5x=-1

         
                                                                            x=-1/-5

 -11x-5x=65+36-1                                                  x=+1/5

-16=-66+36

-16x=-30

x=-30/-16

x=+15/8

 

La segunda no se hacerla                        

 

y-3y=-25+5

-2y=-20

y=-20/-2

y=+10