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27 September, 05:33

Selena is y years old and her sister Molly is 4 years older than Selena write an expression in simple form that represents the sum of the ages of the sisters

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  1. 27 September, 09:05
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    Selena is (x)

    Molly is (x+4)

    sum of their ages (x) + (x+4) = x+x+4=2x+4
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