Evaluate the Arithmetic Expression $\frac { 6 + 9 } { 5 } - 3 [ 15 - ( 17 - 2 \cdot 3 ) ]$

Evaluate the arithmetic expression. $\frac { 6 + 9 } { 5 } - 3 [ 15 - ( 17 - 2 \cdot 3 ) ]$