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Algebra and Equations Flashcards

6 cards from real IMO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Algebra and Equations flashcards as text

  1. Solve: 4x − 6 = 2x + 8

    Answer: 7

    4x − 2x = 8 + 6 → 2x = 14 → x = 7.

  2. What is the value of x² + 2x when x = 3?

    Answer: 15

    x² + 2x = 3² + 2(3) = 9 + 6 = 15.

  3. Which of the following is a linear equation?

    Answer: y = 3x + 2

    y = 3x + 2 is a linear equation because the highest power of x is 1.

  4. If 5n = 45, what is n?

    Answer: 9

    n = 45 ÷ 5 = 9.

  5. Simplify: 3(2x − 4) + 5

    Answer: 6x − 7

    3(2x − 4) + 5 = 6x − 12 + 5 = 6x − 7.

  6. The sum of two numbers is 50. One number is 18. What is the other?

    Answer: 32

    Other number = 50 − 18 = 32.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. imo-official.org — Test delivery, eligibility, passing score, test dates, exam format · verified Oct 2026
  2. imo2027.hu — Exam dates, registration deadline · verified Oct 2026