juanmanuelgaleana juanmanuelgaleana
  • 17-07-2017
  • Mathematics
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Find a solution to the following system of equations -3x+3y=-9 -3x+y=7

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irspow
irspow irspow
  • 17-07-2017
(-3x+3y=-9)-(-3x+y=7)

-3x+3x+3y-y=-9-7

2y=-16

y=-8, making -3x+3y=-9 become:

-3x+3(-8)=-9

-3x-24=-9

-3x=15

x=-5

So the solution to this system of equations is the point (-5, -8)
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