Answer:
N = 13
Explanation:
Move all terms containing n to the left, all other terms to the right.
Add '-3n' to each side of the equation.
24 + -3n = -15 + 3n + -3n
Combine like terms: 3n + -3n = 0
24 + -3n = -15 + 0
24 + -3n = -15
Add '-24' to each side of the equation.
24 + -24 + -3n = -15 + -24
Combine like terms: 24 + -24 = 0
0 + -3n = -15 + -24
-3n = -15 + -24
Combine like terms: -15 + -24 = -39
-3n = -39
Divide each side by '-3'.
n = 13
Simplifying
n = 13