randomosity54 randomosity54
  • 20-09-2018
  • Mathematics
contestada

5x+4y-5z=-27
2x-3y+4z=15
9x+2y+6z=-3

Respuesta :

toriking098 toriking098
  • 21-09-2018

Solve for the first variable in one of the equations, then substitute the result into the other equation.

(−1,−3,2)

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