13921 13921
  • 26-11-2019
  • Mathematics
contestada

solve each system bu substution

y=-3x+5

5x-4y=-3

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Аноним Аноним
  • 26-11-2019

y = - 3x + 5

5x - 4y = - 3

5x - 4(-3x + 5) = - 3

5x + 12x - 20 = - 3

17x = 20 - 3

17x = 17

x = 1

y = - 3·1 + 5 = - 3 + 5

y = 2

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