Mr. Gilliam is 3 years younger than his wife. The sum of their ages is 95. How old is Mr. Gilliam?
I'll try to explain in the simplest way possible (hopefully :P)
Let's make Mr Gilliam's age
From your question, we can understand that
In equation form, this can be written as:
So far so clear?
Next, we know that the sum of
In equation form, this will be written as:
Now, here's the trick. You need a change in perspective.
We know that
Does that make sense?
If it does, then the equation will become:
After shifting the numbers around a little as below, you will arrive at the answer:
Therefore, Mr. Gilliam is 46 years old. I hope this helps!