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14 September, 17:54

Zane and shelby's grandfather is 5 times as old as the total of their ages. If their grandfather is 70 and Shelby is 6, how many years old is Zane?

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  1. 14 September, 18:20
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    G=5 (z+s)

    70=5 (z+6)

    70=5z+30

    40=5z

    z=8

    Zane is 8
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