Question

the sum of the two digits of a number is 11 if you subtract 27 from the number the digits are reversed what is the number​

Answer 1

X+Y=11--eq1

10X +Y -27 = 10Y + X

9X -9Y = 27

9( X-Y) =27

X-Y = 3 --eq 2

Solve both equations(+)

2X = 14

X = 7

Y=4

The number is 74

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