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21 December, 03:26

Evaluate

2a + 4b

or a = - 2 and b = 3

+1
Answers (2)
  1. 21 December, 03:27
    0
    use the substitution method

    2a+4b

    2 (-2) + 4 (3)

    When Multiplying a positive number and negative number = negative number

    -4+12

    = 8

    Answer is 8
  2. 21 December, 03:46
    0
    8

    Explanation:

    2a + 4b

    for a = - 2 and b = 3

    Substitute - 2 in for "a" and 3 in for "b"

    2 * (-2) + 4 * (3)

    2*-2 = - 4 and 4*3 = 12

    -4 + 12 = 8

    Ans: 8
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