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27 February, 22:15

Evaluate the expression 7+4b when b = 3

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Answers (2)
  1. 27 February, 22:33
    0
    We can substitute 4b with 12, because 4 * 3 = 12. 4b is the same as 4 different b's, and when we know b is 3, we can multiply 4 by 3 to get 12.

    7 + 4b =

    7 + 4 * 3 =

    7 + 12 =

    19.

    7 + 4b when b = 3 is 19.
  2. 27 February, 22:34
    0
    19

    Step-by-step explanation:

    Since we know the value of b we can add it into the equation

    1. 7+4 (3)

    Now we can simplify, lets start with multiplication

    2. 7+12

    Finally, simplify

    3. 7+12 = 19
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