Respuesta :

9514 1404 393

Answer:

  2x +y = 8

Step-by-step explanation:

The standard form of a linear equation is ...

  ax +by = c

where a, b, c are mutually prime and 'a' is positive.

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Eliminating parentheses, we have ...

  y +4 = -2x +12

  2x +y +4 = 12 . . . . . . add 2x

  2x +y = 8 . . . . . . . . . .subtract 4