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10 March, 17:49

what is the algebraic equation for three times the sum of a number and seven is two less than five times the number.

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  1. 10 March, 19:26
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    Let n represent the number.

    "the sum of a number and 7" is (n+7)

    Three times "the sum of a number and 7" is 3 (n+7)

    "is" translates to "=".

    "five times the number" is 5n

    Two less than "five times the number" is 5n-2

    Your equation is

    3 (n+7) = 5n-2
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