7 if a = 9 the 16-9=7
7+5+9+5+12=38
38/5=7.6
7.6=mean
hope this helps
Answer:
5 dollars , subtract
Step-by-step explanation:
x = 5.
I attached an image of my work!
Step 1: Subtract 8 from both sides
4x = 20
Step 2: Divide each side by 4
x = 5