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x+5y=19
3x-6y=-6 consistent or inconsistent and dependent or independent


Sagot :

1x + 5y = 19 ⇒ 3x + 15y = 57
3x -  6y = -6 ⇒ 3x -    6y = -6
                                 21y = 63
                                  21     21
                                     y = 3
                          3x - 6(3) = -6
                            3x - 18 = -6
                                + 18  + 18
                                   3x = 12
                                    3      3
                                     x = 4
                               (x, y) = (4, 3)

It is consistent and dependent.

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