The digit of a two digit number differ by 3 .if the digits are interchanging and the resulting number is added to the original number,weget 121 what can be the orignal numbers?
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[tex]10x + x + 3 \: \: 10(x + 3) + x \\ \\ 10x + x + 3 \: 10x + 30 + 121 \\ \\ 10x + x + 10x = 151 - 3 \\ 21x = 148 \\ \\ x = 148 | 21 \\ \\
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