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27 August, 19:07

4x-9y=1, - 4x+6y=-2

solve the system of equations using the linear combination method.

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  1. 27 August, 21:51
    0
    4 x - 9 y = 1

    - 4 x + 6 y = - 2

    - 3 y = - 1

    y = 1

    4 x - 9 y = 1

    4 x - 9 (1) = 1

    4 x - 9 = 1

    4 x = 1 + 9

    4 x = 10

    x = 10/4 = 2.5

    S (2.5; 1)
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