What a Math

If 21x = 79x, what is the value of x?




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Replace the question mark with the number below given a simple math problem.

Fill the Question Mark

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What are the 50th, 63rd and 100th numbers in the sequence below?
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1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

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If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

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Gambling

In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.