Assuming you want to find the value of expression. To find the value of the expression 12a - 11 - 16b, we can substitute the given values of a, b, and c. Using a = -12 and b = 34, we have:
12(-12) - 11 - 16(34)
Simplifying this expression, we get:
-144 - 11 - 544
= -699
Therefore, the value of the expression 12a - 11 - 16b is -699.