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what is the y-coordinate of the solution for the system of equations
{x-y=12, 27+3y=2x
explain step by step

Respuesta :

So the Y coordinate is 27 and you basically multiply it by 2 to get your answer of 54
mhanifa

- 3

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Given system:

  • x - y = 12
  • 27 + 3y = 2x

Rearrange the first equation:

  • x = y + 12

Double both sides of this equation:

  • 2x = 2y + 24

Now compare it with the second equation, eliminate x:

  • 3y + 27 = 2y + 24
  • 3y - 2y = 24 - 27
  • y = - 3

The y-coordinate of the solution is - 3.

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