8-34:2•7=

To solve the expression \( 8 - 34 : 2 \cdot 7 \), follow the order of operations (PEMDAS/BODMAS).

1. Division and Multiplication from left to right:

   • First, calculate \( 34 : 2 \) which is \( 17 \).
   • Next, calculate \( 17 \cdot 7 \) which is \( 119 \).

2. Subtraction:

   • Now, subtract from 8: \( 8 - 119 = -111 \).

Thus, the result is \( \boxed{-111} \).