Prove the equation:
$-6439832+ = 9$
$-$ and $+$ are there just to tell that you can use only these two operations. Also no need to separate or rearrange numbers, just solve it in steps(Use operations alternately).
The 1st and last go together and off, now turn of next 1st and last.
The operator is with end operands only [use end operands(one after other) to create new number] and use operators alternately!
Sorry if too easy or not good. Enjoy:)