[{(9+2)x5-5}-(10)]:3

[{(9+2)x5-5}-(-10)]:3
= [{11x5-5}-(-10)]:3
= [{55-5}-(-10)]:3
= [50+10]:3
= 60:3
= 20

=[(11×5-5)-10]÷3
=[(55-5)-10]÷3
=[(50-10)÷3
=40/3
=13 1/3