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29 September, 15:04

If 5y + 2x = 25 and x=y-1, what is the value of y

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  1. 29 September, 15:34
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    5y + 2 (y-1) = 25

    5y + 2y - 2 = 25

    5y + 2y = 27

    7y = 27

    y = 27/7 or about 3.857
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