Question

e) 2 + [(6 - 9) + (7 - 1) + 151 - 20​

Answer 1

Respuesta:

2+6−9+7−1+151−20

=2+−3+7−1+151−20

=2−3+6+151−20

=2+3+151−20

=2+154−20

=2+134

=136