The sum of two numbers is 12. one number is 5 times the other. find the numbers.

x is one of the numbers

Since one number is 5 times the other, so it is 5x

And it is the sum, so the sign between 5x and x is plus

The equation of this question is 5x+x=12

5x and x are liketerms, so you combine them and get 6x.

Now the equation became 6x=12

So you divide 6 to both side and get x=2