Question

solve the problem ...​

Answer 1

$(3) ^{ - 1}$

Step-by-step explanation:

Let the number be x.

as per question,

$x \times ( { - 5)}^{ - 1} = ( { - 15)}^{ - 1}$

$x = ( \frac{ - 15}{ - 5} )^{ - 1}$

$x = (3) ^{ - 1}$