Algebra practice question

Answer: 20

Add 3 to get 10 = x/2, then multiply by 2: x = 20.

Common wrong answers

If you answered 5

5 halves 10 instead of doubling.

If you answered 8

8 subtracts 3 instead of adding, then doubles.

If you answered 10

10 stops at x/2 = 10.

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