We can start by translating Abigail's statement into a mathematical inequality. She mentions subtracting three from twice a number, \( x \), which can be expressed as:
\[ 2x - 3 \]
She states that this difference will be at least 45, which leads us to set up the inequality:
\[ 2x - 3 \geq 45 \]
Now, we can solve for \( x \):
- Add 3 to both sides:
\[ 2x - 3 + 3 \geq 45 + 3 \]
This simplifies to:
\[ 2x \geq 48 \]
- Next, divide both sides by 2:
\[ x \geq \frac{48}{2} \]
Which simplifies to:
\[ x \geq 24 \]
Thus, the smallest value that would make the scenario true is:
\[ \boxed{24} \]