The sum of two numbers is 30 and their difference is 12.what are the 2 numbers?
1 Answer
The two numbers are
Explanation:
Let the two numbers be
The sum of these numbers is
The difference between these numbers is
I. You can solve this by logic.
If the two numbers were exactly equal, then they would both be
But the difference would be
So if you lowered
So you can see that for every point you subtract from
So, by logic, you need to subtract
Answer:
The two numbers are
II. You can solve this by math
These are simultaneous equations, so you can solve them by math.