Answer:
n=17
step by step
simplify both sides
than add 18n to both sides
than subtract 31 from both sides
than divide 3 by both sodes
Answer:
one solution
Step-by-step explanation:
20 - 15n + 11 = -20 - 18n
31 - 15n = -20 - 18n
Subtract 31 from both sides
- 15n = -20 - 31 - 18n
-15n = -51 - 18n
Add 18n to both sides
18n - 15n = -51
3n = -51
Divide both sides by 3
n = -51/3
n = -17
