A number multiplied by 3, then decreased by 9, equals twice the number plus 3. Find the number.
Category: Math · Difficulty: expert
Hint: Set up and solve the corresponding algebraic equation.
Answer
A number 12
Explanation
3x - 9 = 2x + 3, rearranging gives x = 12.
This is a expert math riddle — one of the harder riddles here. The answer is A number 12.
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