Diego’s age `d` is 5 more than 2 times his sister’s age `s`. This situation is represented by the equation `d=2s+5`. If we know Diego’s age,

Question

Diego’s age `d` is 5 more than 2 times his sister’s age `s`. This situation is represented by the equation `d=2s+5`. If we know Diego’s age, which equation will help us find his sister’s age?

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Thu Thủy 4 weeks 2021-08-30T21:31:31+00:00 1 Answers 0 views 0

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    2021-08-30T21:33:12+00:00

    Answer:  s=\dfrac{(d-5)}{2}.

    Step-by-step explanation:

    Given: d denotes Diego’s age while s denotes his sister’s age.

    The situation is represented by the equation d=2s+5.

    To find his sister’s age we can write the above equation as s=\dfrac{(d-5)}{2} [we first subtract 5 from both sides and then divide both sides by 2]

    Hence, the required equation: s=\dfrac{(d-5)}{2}.

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