Question

50 Баллов

(13+2*7)
________ - (6-7-5)=????
(5-2)

Answer 1

$\frac{(13 + 2 \times 7)}{(5 - 2)} - (6 - 7 - 5) = \\ = \frac{(13 + 14)}{3} - ( - 6) = \\ = \frac{27}{3} + 6 = \\ = 9 + 6 = 15$

Answer 2

((13+2×7)/(5-2))-(6-7-5)=((13+14)/3)-(-6)=(27/3)-(-6)=9-(-6)=
=9+6=15