Question

Помогите пж!!!!!!!!!!

Answer 1

Ответ:

$(x + \frac{x}{d} ) - (x - \frac{x} {d} ) \\ x + \frac{x}{d} - x - \frac{x}{d} \\ 2 \times \frac{x}{d} \\ \frac{2x}{d}$