Answer:
Micheal is 8, and Tom is 12 years old.
Step-by-step explanation:
To solve this, we can set each of their ages as a variable. Let's say Michael's age is x.
We know Tom is 4 years older than Michael, so Tom's age is x+4.
We also know that their combined age is 20, so if we add both of their ages, we should get 20.
Solving;
[tex]x + (x+4) = 20\\2x+4 = 20\\2x=16\\x=8.[/tex]
So Michael's age is 8, and Tom is 12.
