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4 January, 00:20

Seven more than the product of a number and 5 equals 2. Use the variable c for the unknown number.

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  1. 4 January, 01:12
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    Equation: 5c + 7 = 2

    Solution: The number is - 1.

    Step-by-step explanation:

    The unknown number is c.

    "the product of a number and 5" is 5c

    "Seven more than the product of a number and 5" is 5c + 7

    "Seven more than the product of a number and 5 equals 2" is 5c + 7 = 2

    The equation is

    5c + 7 = 2

    To solve, we first subtract 5 from both sides.

    5c + 7 - 7 = 2 - 7

    5c = - 5

    Now divide both sides by 5.

    5c/5 = - 5/5

    c = - 1

    Answer: The number is - 1.
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