How do you find out 2 missing numbers?

Question

What would I do to find the answer to this equation:

The sum of two numbers is 20 and their difference is 12 what are those two numbers.

Answer 1

Hi Ky,

Let the two numbers be represented by x and y.

Sum of two numbers is 20 ---> X+Y=20

the difference of the two numbers is 12 ---> X-Y=12

Now we can solve the two equations for the answer.

Hope that helps!