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what is 2x-3y=-2 and 4x+y=24

Sagot :

2x - 3y = -2  ⇒ 4x - 6y = -4
4x +  y = 24 ⇒  4x + y = 24
                              -7y = -28
                               -7      -7
                                 y = 4
                     2x - 3(4) = -2
                       2x - 12 = -2
                            +12  +12
                              2x = 12
                               2      2
                               x = 6
                         (x, y) = (6, 4)