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2 November, 08:13

X=-6+y x-3y=28 substitution

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  1. 2 November, 08:21
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    A) x=-6+y

    B) x-3y=28

    We can substitute equation A into B

    B) - 6 + y - 3y=28

    B) - 2y = 34

    y = - 17

    x = - 23
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