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20-04-2018
Mathematics

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-5x+y=19 x-7y=3 (-4, -1)

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angleofattack angleofattack

20-04-2018

[tex] - 5x + y = 19 \\ x - 7y = 3 \\ - - - - - - - \\ - 5x + y = 19 \\ 5x - 35y = 15 \\ - - - - - - - \\ - 34y = 34 \\ y = - 1 \\ - - - - - - - \\ x - 7y = 3 \\ x + 7 = 3 \\ x = - 4[/tex]

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