Question

Помогите с уравнением

Answer 1

$\frac{x+2}[26}-4=\frac{78}{13} | *26 \\ x+2-4*26=78*2 \\ x+2-4*26=78*2 \\ x = 78*2+4*26-2 \\ x = 2(78+2*26-1) \\ x = 2(78+52-1) \\ x = 2(78+51) \\ x = 2(129) \\ x = 258$