Answer:
n=17
Step-by-step explanation:
3n+2+8n-9=180 : Start with equation
11n+2-9=180 : Combine variables (3n and 8n)
11n+2=189 : Add 9 to both sides to get rid of it
11n=187 : Subtract 2 from both sides to get rid of it
n=17 : Divide by 11
