Christmasgirl Christmasgirl
  • 18-03-2017
  • Mathematics
contestada

Solve by the addition method ( elimination).
5x+2y=-17
3x-2y=-7

Respuesta :

wolf1728
wolf1728 wolf1728
  • 18-03-2017
A) 5x + 2y= -17
B) 3x -2y = -7
Adding the 2 equations, we get
8x = -24
x = -3
B) 3*-3x -2y = -7
-9 - 2y = -7
2y = -2
y = -1
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