Question

3 3/8 х + 5/8 х - 3,6 = 8,4

Answer 1

Ответ:

Пошаговое объяснение:

3 3/8 х + 5/8 х - 3,6 = 8,4

3 3/8 х + 5/8 х = 3,6 + 8,4

4х=12

Х=12:4

Х=3

Answer 2

Ответ:

3 3/8 х + 5/8 х - 3,6 = 8,4

х=3

Пошаговое объяснение:

3 3/8 х + 5/8 х - 3,6 = 8,4

преобразовываем

27/8х+5/8х-18/5=42/5

умножаем обе части равенства на 40

135х+25х-144=336

приводим подобные члены

160х-144=336

переносим в правую часть равенства

160х=336+144

складываем числа

160х=480

делим обе части на 160

х=480:160

х=3

Answer 3

To solve the equation $3\frac{3}{8}x + \frac{5}{8}x - 3.6 = 8.4$, you can follow these steps:

1. Combine like terms on the left side of the equation:

   $\left(3\frac{3}{8}x + \frac{5}{8}x\right) - 3.6 = 8.4$

   To add these fractions, you need a common denominator, which is 8. So, rewrite the fractions with a common denominator:

   $\left(\frac{27}{8}x + \frac{5}{8}x\right) - 3.6 = 8.4$

2. Combine the fractions on the left side of the equation:

   $\frac{27}{8}x + \frac{5}{8}x - 3.6 = 8.4$

   Now, add the two fractions:

   $\frac{27}{8}x + \frac{5}{8}x = \frac{32}{8}x = 4x$

3. Rewrite the equation with the combined terms:

   $4x - 3.6 = 8.4$

4. Add 3.6 to both sides of the equation to isolate the term with the variable on the left side:

   $4x = 8.4 + 3.6$

   $4x = 12$

5. Finally, divide both sides by 4 to solve for x:

   $x = \frac{12}{4}$

   $x = 3$

So, the solution to the equation $3\frac{3}{8}x + \frac{5}{8}x - 3.6 = 8.4$ is $x = 3$.