Hi,
I can't specifically answer your question about whether beginning algebra applies to the math requirement for EC, but some ALEKS courses have been reviewed by ACE. Check their guide,
https://www.acenet.edu/nationalguide/, and you'll find Beginning Algebra on that list. If you complete the ALEKS course successfully, you may not need to sit the CLEP if EC will accept the college credit recommendation from ACE.
The best bet in determining whether that will work and what math course will apply to your EC requirements is to contact your advisor. TESC does not mention granting credit for math courses leading up to intermediate algebra.
Hope this helps,
Sandy