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7 September, 21:23

Does the following system have a unique solution? Why? 4x+10y=57 2x+5y=38

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  1. 7 September, 23:10
    0
    No

    Step-by-step explanation:

    4x+10y=57 (1)

    2x+5y=38 (2)

    (1) * 1; (2) * (-2), you have

    4x+10y = 57 (1)

    -4x-10y = -76 (2)

    (1) + (2), you have:

    0 = - = 19 (wrong)

    The equations do not have the solution.

    The system does not have a unique solution.
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