Question

Please answer in one variable​

Answer 1

Answer:

10x+y is a no

10y+x is after reversing

after adding

11x+11y=99

y=2y

33x=99

x=3

so no is 36

Answer 2

$\huge\boxed{Answer}$

$Let \: the \: tens \: digit \: be \: y \: and \: other \: one \: be \: x \\ </p><p>[tex]Let \: the \: tens \: digit \: be \: y \: and \: other \: one \: be \: x \\ The \: original \: number \: = \: 10y + x \\ </p><p>[tex]Let \: the \: tens \: digit \: be \: y \: and \: other \: one \: be \: x \\ The \: original \: number \: = \: 10y + x \\ The \: reverse \: number \: = 10x + y$

$10y + x + 10x + y = 99 \\ 10y + 2y + 20y + y = 99 \\ 33y + 99 \\ y = 9$.

ANSWER = 36