What is the first step in solving to following expression 5+8-(3+6)×3×7

The first step is to add 5 and 8

Step-by-step explanation:

PEMDAS

5+8−(3+6)(3)(7)

=13−(3+6)(3)(7)

=13−(9)(3)(7)

=13−(27)(7)

=13−189

=−176