To solve the equation \( x - 32.65 = 125.35 \) for \( x \), we can use inverse operations.
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Add 32.65 to both sides of the equation:
\[ x - 32.65 + 32.65 = 125.35 + 32.65 \]
This simplifies to:
\[ x = 158.00 \]
So, Ellie had $158 in her savings account before her purchase. The correct response is \( \boxed{158} \).