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Solve the following system of equations for x. Write your answer as a point (x,y). Show all your work! 2x - y = 4. Y - x =4

Respuesta :

sqdancefan

Answer:

  (8, 12)

Step-by-step explanation:

You want to solve the system ...

  • 2x -y = 4
  • y -x = 4

Solution

Add the two equations:

  (2x -y) +(y -x) = (4) +(4)

  x = 8 . . . . . . . . . . . . simplify

  y = 4 +x . . . . . . rearrange the second equation

  y = 4 +8 = 12

The solution is (x, y) = (8, 12).

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