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28 September, 06:58

When solving 4 (2x+5) = 100, Roberto wrote 8x+20 = 100. Which number property did Roberto use?

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Answers (2)
  1. 28 September, 07:24
    0
    The property that Roberto used is Distribution property.

    Step-by-step explanation:

    Take what's outside of the parenthesis and multiply it by everything inside of the parenthesis.

    4 * 2x = 8x

    4 * 5 = 20

    So now the equation is: 8x + 20 = 100
  2. 28 September, 08:34
    0
    This property is known as the distributive property.

    When you have a variable inside or outside a pair of parentheses, you can multiply the number outside the parentheses to each term inside the parentheses, and the answer will still be the same.
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