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73%
avg pass probability after diagnostic
50%
of study material skipped on avg
$1,200+
saved per passed exam
Diagnose · Drill · Mock · Pass
Three steps between "maybe" and "I passed."
1. See your score
Take a 15-minute diagnostic. Know exactly where you stand — score, gaps, and time to pass.
2. Fix what matters
Adaptive practice targets your weakest units. Failed questions come back until you master them.
3. Walk in confident
Watch your pass probability climb. Schedule the real exam when you hit 80%+.
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CLEP College Algebra
MCQ · Unit 2: Equations & Inequalities
If 2x + 7 = 15, what is the value of x?
| Feature | PrepLion | Others |
|---|---|---|
| Pass probability score | — | |
| Time-to-pass estimate | — | |
| Topic mastery tracking | — | |
| Repeat failed questions | — | |
| Exam-aligned practice | Partial | |
| 100% exam coverage | Partial | |
| Flashcard study mode | — | |
| Score calibration | Partial | |
| Starting price | $0 Free | $20–60/mo |
One passing score replaces one college course. Save $1,200+ per exam. 34 exams available.
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22 exams across Business, Social Sciences, Humanities, and STEM. $100 per exam. Accepted at 1,900+ colleges.
DSST® is a registered trademark of Prometric, not affiliated with PrepLion.
“My first diagnostic was 28%. I almost quit right there. Two weeks of PrepLion drilling my two weak units and I walked out of the test with a 58. Low starting score is not a verdict.”
Danielle W.
Working Mom, Ohio · CLEP Introductory Sociology
“Started at 35% on the diagnostic. The app said I needed ~20 hours of practice and it was right. Passed at 56 on the real exam, saved $1,200 in tuition.”
Marcus T.
Army Veteran, Texas · DSST Principles of Supervision
“I walked in knowing my pass probability was 89%. No anxiety. Passed College Algebra first try and saved $1,200.”
Jordan M.
Adult Learner, Florida · CLEP College Algebra
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Exam-quality questions across all 56 CLEP & DSST exams
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When PrepLion shows 80%+ pass probability, you're ready. Our prediction is built on 28,000+ exam-quality questions, College Board research, real student performance data, and a pass engine that gets smarter with every practice session. We don't guess — we calculate.
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