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3 December, 16:20

Using the Addition Method, solve for y in the following system of linear equations.

4x-2y=6

2x+y=7

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Answers (1)
  1. 3 December, 16:24
    0
    x = 3.33

    y = 0.33

    Step-by-step explanation:

    to evaluate for y in this system of linear equation we would say that let

    4x-2y=6 ... equation 1

    2x+y=7 ... equation 2

    from equation 2

    2x+y=7 ... equation 2

    y = 7 - 2x ... equation 3

    substitute for y in equation 1

    4x-2y=6 ... equation 1

    4x - 2 (7 - 2x) = 6

    4x - 14 + 2x = 6

    6x = 6 + 14

    6x = 20

    divide both sides by 6

    6x/6 = 20/6

    x = 3.33

    put x into equation 3

    y = 7 - 2x ... equation 3

    y = 7 - 2 (3.33)

    y = 7 - 6.667

    y = 0.33
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