Second number - n
First number- 5 times of another number - 5n
Adding 8 to each number:
n+8
5n + 8
First number becomes 3 times the second number:
5n + 8 = 3(n + 8)
5n + 8 = 3n + 24
2n = 16
n = 8 is a second number
5n = 5*8 = 40 is a first number
Numbers are 40 and 8.