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16 December, 19:23

7x + 2y = 4 y = x + 1 Solve the system of equations. A, (1/3, 4/3) B, (2/9, 11/9) C, no solution

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  1. 16 December, 19:40
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    7x + 2y = 4

    Step-by-step explanation:

    7x + 2y = 4

    y = x + 1

    Substitute y = x + 1 into 7x + 2y = 4

    7x + 2 (x + 1) = 4

    7x + 2x + 2 = 4

    9x + 2 = 4

    9x = 2

    x = 2/9

    y = 2/9 + 1

    y = 2/9 + 9/9

    y = 11/9

    Answer

    (2/9, 11/9)
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