Four-digit 64504

Writing a four-digit number ends with the number 5. If we move this number to the first place, we get a number 531 larger than the original. Specify the original number.

Correct answer:

x =  4965

Step-by-step explanation:

a 10+5=5 1000+a531  9a=4464  a=94464=496  a=496  x=a 10+5=496 10+5=4965   Verifying Solution:  z=54964965=531

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