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Solve by substitution
4x=y-1
6x-2y=-3

Sagot :

Panoyin
4x = y - 1     ⇒ 4x + y = -1   ⇒  12x + 3y = -3
6x - 2y = -3  ⇒ 6x - 2y = -3 ⇒  12x -  4y = -6
                                                            7y = 3
                                                             7     7
                                                             y = 3/7
                                            12x + 3(3/7) = -3
                                             12x + 1 3/7 = -3
                                                      -1 2/7    -1 2/7
                                                          12x = -4 2/7
                                                           12        12
                                                               x = -5/14
                                                         (x, y) = (-5/14, 3/7)
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