how do you do 16n-9
with the specials
To evaluate the expression 16n - 9, you can simply substitute a value for n. The variable n represents an unknown number, so you can choose any number you want to replace it with. Let's say we want to evaluate the expression when n = 5.
Step 1: Substitute the value for n in the expression 16n - 9:
16(5) - 9
Step 2: Simplify the expression:
80 - 9
Step 3: Perform the subtraction:
= 71
Therefore, when n = 5, 16n - 9 equals 71.