15-12•6

To solve the expression \( 15 - 12 \cdot 6 \), you need to follow the order of operations (PEMDAS/BODMAS):

1. First, perform the multiplication: \[ 12 \cdot 6 = 72 \]

2. Then, perform the subtraction: \[ 15 - 72 = -57 \]

So, the result of \( 15 - 12 \cdot 6 \) is \(-57\).