If you subtract twice a number from twenty, the result is six. What is the number?
Category: Math · Difficulty: hard
Hint: Write the equation and isolate the variable by addition and division.
Answer
A number equal to seven
Explanation
20 - 2x = 6; solving gives 2x = 14, so x = 7.
This is a hard math riddle — a tricky one that takes a little thought. The answer is A number equal to seven.
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