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2 October, 16:44

Examine the system of equations.

y = 3/2x - 6,

y = - 9/2x + 21

Use substitution to solve the system of equations. What is the value of y?

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Answers (2)
  1. 2 October, 18:35
    0
    Answer: The correct answer is 3/4
  2. 2 October, 20:28
    0
    By substitution,

    1.5x - 6 = - 4.5x + 21

    6x = 27

    x = 4.5

    Hence, y = 1.5 (4.5) - 6 = 0.75
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