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Yesterday, 20:00

What is the answer to triple a number is the s game as double the number increased by 5

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  1. Yesterday, 23:48
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    x = 7

    Step-by-step explanation:

    Let x = the number. Then

    "Triple a number" means 3x

    "is the same as" means =

    "double the number increased by 5" means 2x + 7

    ∴ 3x = 2x + 7

    Subtract 2x from each side

    x = 7

    The answer is x = 7.

    Check:

    3 * 7 = 2 * 7 + 7

    21 = 14 + 7

    21 = 21

    OK.
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