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solve simultaneous equation

2x + 4y = 1

3x-5y=7

Sagot :

Panoyin
2x + 4y = 1 ⇒ 6x + 12y = 3
3x -  5y = 7 ⇒ 6x - 10y = 14
                               22y = 17
                                22     22
                                   y = 17/22
               2x + 4(17/22) = 1
                  2x + 3 1/11 = 1
                         -3 1/11    -3 1/11
                                2x = -2 1/11
                                 2          2
                                  x = -1 1/22
                             (x y) = (-1 1/22, 17/22)
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