the sum is 19.my hundrends

  1. In a factory of electronic items, the total cost of production, expressed in thousands of dollars, is given by the function
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    2. Jessy asked by Jessy
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  2. the sum is 19.my hundrends digit is 4 less than 7. my thousands digit is the sum of 3 and 1. the other two digit are the same
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    2. rawand asked by rawand
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