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12 October, 20:18

Solve each system by substitution.

Y = - 3x + 4

Y = 4x - 10

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Answers (1)
  1. 12 October, 20:19
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    Step-by-step explanation:

    Y = - 3x + 4 ... (1)

    Y = 4x - 10 ... (2)

    Substituting (1) into (2)

    -3x + 4 = 4x - 10

    -3x - 4x = - 10 - 4

    -7x = - 14

    x = - 14/-7

    x = 2

    Putting x in (2)

    y = 4 (2) - 10

    y = 8 - 10

    y = - 2
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