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30 October, 01:51

What is the value of r in: 1/7 (105+r) = 20

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  1. 30 October, 02:01
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    Use the distributive property.

    1/7 (105 + r) = 20

    15 + (1/7) r = 20

    Then subtract each side of the equation by 15.

    15 + (1/7) r = 20

    (1/7) r = 5

    Divide both sides by 1/7.

    (1/7) r = 5

    r = 35

    So, the answer to this question is r is equal to 35.
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