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26 November, 11:23

3 (4x + 5) = 12 Which of the following correctly shows the beginning steps to solve this equation?

A: Step 1: 12x + 15 = 12 Step 2: 12x = - 3

B: Step 1: 12x + 5 = 12 Step 2: 12x = 7

C: Step 1: 7x + 5 = 12 Step 2: 7x = 7

D: Step 1: 7x + 8 = 12 Step 2: 7x = 4

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Answers (1)
  1. 26 November, 12:13
    0
    The correct answer is A.

    Here is the completed problem:

    3 (4x+5) = 12

    Distributive property.

    3 (4x+5) = 12

    Simplify

    12x+15=12

    Subtract 15 from both sides.

    12x+15-15=12-15

    12x=-3

    Divide both sides by 12.

    12x/12 = - 3/12

    x = - 1/4
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Home » Mathematics » 3 (4x + 5) = 12 Which of the following correctly shows the beginning steps to solve this equation? A: Step 1: 12x + 15 = 12 Step 2: 12x = - 3 B: Step 1: 12x + 5 = 12 Step 2: 12x = 7 C: Step 1: 7x + 5 = 12 Step 2: 7x = 7 D: Step 1: 7x + 8 =
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