stephanieeping
stephanieeping stephanieeping
  • 11-02-2019
  • Mathematics
contestada

Solve the system of equations by graphing.
x+y=-7
2x+y=6

Respuesta :

eric271828
eric271828 eric271828
  • 11-02-2019

I would solve it using matrices, thus obtaining the answer (x,y)=(-1,8). When you draw a graph the two graphs should intersect at thia point

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carlosego
carlosego carlosego
  • 12-02-2019

For this case, we observe the attached figure. We have the following system of two equations with two unknowns:

[tex]x + y = -7\\2x + y = 6[/tex]

The solution of the system will be given by the intersection of the lines. That is, the solution is:

[tex](x, y) = (13, -20)[/tex]

Answer:

See attached figure

[tex](x, y) = (13, -20)[/tex]

Ver imagen carlosego
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