Based on the information given, the condition that Linda is most likely struggling with is writing disorder.
From the information given, it was stated that Linda is having trouble in her economics class and that she often gets low grades on her essays because she uses inaccurate language and her sentences are difficult to understand.
The above shows that she has a writing disorder. It's also referred to as dysgraphia. It's when an individual has problems with writing. This has a negative impact on the grade of such a person.
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