Question

Решение линейных уравнений и систем линейных уравнений                                а)2x-5y=0    
                            6x+y=0   
                          б)5x+y=30    
                             3x-4y=41    
                          в)3a-2b=6    
                             a-4b=6   
                          г)3u-4v=2  
                            9u-5v=7                                                                                                                                                                  д)6m-9n=-4    
                              2m+5m=4  
                           е)5y+8z=21    
                               10y-3z=-15                            

Answer 1

Я не ботаник, просто учитель хороший...