wuraola1 wuraola1
  • 13-07-2017
  • Mathematics
contestada

How many solutions does the system x-3y = -8 x + 3y =8

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bcalle
bcalle bcalle
  • 13-07-2017
x - 3y = -8
x + 3y = 8
---------------    Add the equations
2x =  =
x = 0

Plug zero back in to either equation and solve for y.
x - 3y = -8
0 - 3y = -8
-3y = -8
divide both sides by -3
y = 8/3

(0, 8/3)
ONE SOLUTION
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