We would open the parenthesis on the right hand side of the equation by multiplying each term inside the parenthesis by the term outside. It becomes
- 40 + 2n = - 4n - 64
We would make all terms containing n to be on the left hand side of the equation and the constant terms to be on the right side of the equation. It becomes
2n - 6n = - 64 + 40
- 4n = - 24
Dividing the left hand side and the right hand side of the equation by
A standard die has six numbers (1 through 6). That means there is a 1/6 probability of rolling any one number. There is a 3/6 probability of rolling one of the selected numbers which simplifies to 1/2 or 0.50
