Final answer:
To evaluate the expression 12w - 6 when w = 2, substitute w with 2 and simplify to get the answer 18.
Step-by-step explanation:
To evaluate the expression 12w - 6 when w = 2, you substitute the value of w into the expression. So, instead of w, you write 2 in place of w:
12(2) - 6
= 24 - 6
= 18
Learn more about Evaluating Expressions