Mabel's age increased by 19 is 44

To find Mabel's initial age, you need to subtract the increase from her current age.

Let's denote her initial age as "x".

According to the information given, Mabel's age increased by 19 units, so her current age is x + 19.

Given that her current age is 44, we can set up the equation:

x + 19 = 44

To solve for x, we need to isolate it on one side of the equation.

Subtracting 19 from both sides of the equation, we have:

x = 44 - 19

x = 25

Therefore, Mabel's initial age was 25.