Answer:
Explanation:
Let's start by using "C" to represent Carlos's current age.
We know that Allen is 36 years old, so we can write A = 36
We also know that there was a time when Allen was as old as Carlos is now, and at that time, Carlos was C - x years old, where "x" is the number of years ago this was. So we can write A = 2(C - x)
We want to find out how old Carlos was one year ago, so we can set x = 1 and solve for C:
36 = 2(C - 1)
36 = 2C - 2
38 = 2C
C = 19
So Carlos is currently 19 years old. To find out how old he was one year ago, we subtract 1:
19 - 1 = 18
Therefore, Carlos was 18 years old one year ago.
Hope it helped