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29 March, 15:47

How can I solve this system of equations: x-y=-3 and - 5x-2y=1

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  1. 29 March, 18:41
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    x-y=-3 so y = x + 3

    -5x-2y=1

    substitute y = x + 3 into - 5x-2y=1

    -5x - 2y = 1

    -5x - 2 (x + 3) = 1

    -5x - 2x - 6 = 1

    -7x = 7

    x = - 1

    y = x + 3 = - 1 + 3 = 2

    answer

    (-1, 2)
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