AlgebraHardNumber from a bracketed relation
Algebra practice question
Four times the result of subtracting 3 from a number equals three times the number. What is the number?
Answer: 12
4(n − 3) = 3n gives 4n − 12 = 3n, so n = 12.
Common wrong answers
- If you answered 3
- 3 solves 4n − 3 = 3n, not distributing the 4.
- If you answered 4
- 4 copies the multiplier.
- If you answered -12
- −12 has the sign wrong.
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