-8
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$37$ $12$ $9$ $×$ $2.5$ $÷$ $+$ $=$ $X$

Solve for $X$

Hint 1

Uhyhuvh Srolvk Qrwdwlrq

Hint 2

Hint 1 needs to be decoded

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  • $\begingroup$ 2 straight hints? :-/ You should hold on before posting hints. $\endgroup$ – Techidiot Jan 3 '17 at 15:23
  • 1
    $\begingroup$ I thought the spoilers would be enough, so that everyone can decide for themselves if they want to use the hints. $\endgroup$ – jrenk Jan 3 '17 at 15:25
5
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On the face of it, this looks like postfix notation, if that's so, then

it can be rewritten as ((12*9)/2.5)+32=X, or X = 80.2

Additionally, the hint decodes to

Reverse Polish Notation, in Rot23, which is another name for Postfix Notation.

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4
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X =

80.2

The equation is

in Reverse Polish notation

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