One number is 6 less than 3 times another number and their sum is 62

Let one of those numbers be x.

Now,

according to question,

The other number must be,

3x-6

Now,

as said in the question,

x+3x-6 = 62

4x - 6 = 62

4x = 68

x = 17.

Now,

we got one of those numbers which was x = 17,

and the other number should be 3 (17) - 6 = 51-6 = 45.