Three times a number plus 4 equals 15 times the reciprocal of the number. Determine the number.
3 n + 4 = 15 / n
3 n² + 4 n - 15 = 0
(3 n - 5) (n + 3) = 0
n = 5/3 ... or ... n = -3
3 n² + 4 n - 15 = 0
(3 n - 5) (n + 3) = 0
n = 5/3 ... or ... n = -3