Respuesta :

Answer:    4x - y = 20

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Work Shown:

y = 4x - 20

4x - 20 = y ...... swap both sides

4x = y + 20 ..... adding 20 to both sides

4x - y = 20 .... subtracting y from both sides

The equation is now in standard form (Ax+By = C) where,

  • A = 4
  • B = -1
  • C = 20
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