14.One number is thrice the other number if their sum is 60 what are numbers

Let x be the number.
Let the other number be 3x.
3x + x = 60
4x = 60
x = 15
The number is x.
x = 15
The other number is 3x.
3x = 3(15) = 45
Therefore, the two numbers are 15 and 45.