Question

(0,8х + 3,52) : 3 =13

Answer 1

(0,8х + 3,52) : 3 = 13

0,8х + 3,52 = 13 · 3

0,8х + 3,52 = 39

0,8х = 39 - 3,52

0,8х = 35,48

х = 35,48 : 0,8

х = 44,35

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Проверка: (0,8 · 44,35 + 3,52) : 3 = 13

                   (35,48 + 3,52) : 3 = 13

                   39 : 3 = 13

                   13 = 13

Answer 2

To solve the equation (0.8x + 3.52) / 3 = 13, we'll follow these steps:

1. Subtract 3.52 from both sides to isolate the term (0.8x) on the left side of the equation:

   (0.8x + 3.52) / 3 - 3.52 = 13 - 3.52

   Simplifying further, we get:

   (0.8x + 3.52) / 3 - 3.52 = 9.48

2. Multiply both sides of the equation by 3 to eliminate the fraction:

   3 * [(0.8x + 3.52) / 3 - 3.52] = 3 * 9.48

   Simplifying further, we get:

   0.8x + 3.52 - 10.56 = 28.44

3. Combine like terms on the left side:

   0.8x - 7.04 = 28.44

4. Add 7.04 to both sides to isolate the term (0.8x) on the left side:

   0.8x - 7.04 + 7.04 = 28.44 + 7.04

   Simplifying further, we get:

   0.8x = 35.48

5. Divide both sides of the equation by 0.8 to solve for x:

   (0.8x)/0.8 = 35.48/0.8

   Simplifying further, we get:

   x = 44.35

Therefore, the solution to the equation (0.8x + 3.52) / 3 = 13 is x = 44.35.