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22 October, 07:45

Niccis sister is seven years less than twice Nicci's age, a. The sum of Niccis age her sisters age is 41. Which equation represents this relationship.

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  1. 22 October, 10:37
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    Niccis age = a.

    Nicci's sister's age: 2a-7

    a + 2a - 7 = 41

    To actually solve it:

    a + 2a - 7 = 41.

    3a = 41 + 7.

    3a = 48

    a = 16
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