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20 May, 04:42

4y=x 3x-y=70

how to solve this problem using substitution

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  1. 20 May, 05:02
    0
    4y=x

    3 (4y) - y=7012y-y=70

    11y=70

    y=70/11

    4 (70/11) = x

    280/11=x
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