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Blababa [14]
2 years ago
11

Solve [(x+7) x 3-5] / 4 = 7 What is the first step in this equation

Mathematics
1 answer:
Nitella [24]2 years ago
3 0

Answer:

The first step is to slove the numbers in the brackets

Step-by-step explanation:

[(x+7) x -2] / 4 = 7

-2(x+7) / 4 = 7

-2x-14 / 4 = 7

-2x-14 = 28

-2x = 42

x = -21

PEMDAS

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Based on the hints of distinguishing between <em>radical</em> and <em>non-radical</em> numbers, we have the following lists:

  1. \sqrt{3}, 2.\overline{2}, 2.5, \sqrt{5}
  2. 3.01, 3.\overline{01},3.\overline{1}, \sqrt{9}
  3. -4.\overline{1}, - 4.1, 4.01, \sqrt{17}
  4. - 2.5,  -\sqrt{5}, \sqrt{6}, 2.5

<h3>How to order numbers from least to greatest</h3>

In this question we must order sets of numbers in ascending order. A hint consists in comparing <em>non-radical</em> numbers with the <em>closest</em> <em>radical</em> numbers whose results are integers.

In consequence, we obtain the following orders:

  1. \sqrt{3}, 2.\overline{2}, 2.5, \sqrt{5}
  2. 3.01, 3.\overline{01},3.\overline{1}, \sqrt{9}
  3. -4.\overline{1}, - 4.1, 4.01, \sqrt{17}
  4. - 2.5,  -\sqrt{5}, \sqrt{6}, 2.5

To learn more on sets: brainly.com/question/18877138

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