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Mathematics in the fourth grade of primary school.
The original number is x, y, then x times Y= 14.6.

One multiplier is expanded by 5 times, and the other multiplier is expanded by 2 times, so

5X Times 2Y= 10XY= 146.

I wish you progress in your studies and go up a storey still higher! Please remember to adopt it, thank you! (*^__^*)

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