Solve for x: 4x + 5 = 33
Answer in (no unit).
Show the answer
7 (no unit)
Subtract 5 from both sides: 4x = 28. Divide both sides by 4: x = 7. Check: 4 × 7 + 5 = 33.
Reference: Two-step linear equations
Electrical apprenticeship aptitude test (algebra and reading) practice test
206 free practice questions for this exam, each with the reason for the answer and where to look it up.
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Electrical apprenticeship aptitude: practice test
10 questions, graded as you go, with the reason for every answer. No sign-up.
Practice tests that prepare you for this exam
Electrical apprenticeship aptitude
Algebra and functions plus reading comprehension, the two parts of the aptitude test used for electrical apprenticeship entry.
Trade math and blueprint reading
Fractions and measurement, percent and ratio, geometry, algebra, material takeoffs and blueprint reading for apprenticeship tests and every trade exam.
About the exam
| Exam | Electrical apprenticeship aptitude test (algebra and reading) |
|---|---|
| Who runs it | Electrical Training Alliance (IBEW/NECA) |
| Where | United States |
Question count, time limit and pass mark differ by where you take it. Check the official candidate bulletin from the organisation that runs your exam.
Sample questions
Which of these powers has the greatest value?
- 3^3
- 5^2
- 10^1
- 2^5
Show the answer
D. 2^5
2^5 = 32, 3^3 = 27, 5^2 = 25 and 10^1 = 10, so 2^5 is the largest. A bigger base does not guarantee a bigger value; the exponent matters as much.
Reference: Comparing powers
If f(x) = x² − 3x, what is f(−2)?
Answer in (no unit).
Show the answer
10 (no unit)
Replace x with −2: (−2)² − 3(−2) = 4 + 6 = 10.
Reference: Function notation; evaluating with negative inputs
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