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12 January, 01:29

Solve the system of equations using the substitution method.

y = 7x - 16,

y = 2 (2x - 5)

What is the solution?

+3
Answers (1)
  1. 12 January, 01:35
    0
    solution: (2, - 2)

    Step-by-step explanation:

    y = 7x - 16,

    y = 2 (2x - 5)

    solving ...

    7x - 16 = 2 * (2x - 5)

    7x - 16 = 4x - 10

    7x - 4x = 16 - 10

    3x = 6

    x = 2

    y = 7*2 - 16 = 14 - 16 = - 2
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