If 5 times a number minus 4 equals 21, what is the number?
Category: Math · Difficulty: medium
Hint: Isolate the number using simple algebra
Answer
A number equal to 5
Explanation
5x - 4 = 21; adding 4 to both sides and dividing gives x = 5
This is a medium math riddle — a moderate challenge for most people. The answer is A number equal to 5.
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