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60 is added to a mystery number. The result is multiplied by 2. After that, 28 is subtracted. The final value is 168.
What was the mystery number at the beginning?
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Solve it mentally from the end to the beginning.
1. 168 + 28 = 196.
2. = 98.
3. 98 - 60 = 38.
Answer. 38.