Question

3. Решите уравнение: картинка ниже​

Answer 1

$(x + 3 \frac{2}{5} ) \div 6 = 2.3 \\ x + 3 \frac{2}{5} = 2.3 \times 6 \\ x + 3.4 = 13.8 \\ x = 13.8 - 3.4 \\ x = 10.4$