Question

by what number should - 36 raise to the power -1 be divided so that the questient is 9 raised to the power-1

Answer 1

let the diviser be x

${ - 36}^{ - 1} \div x = {9}^{ - 1}$

$\frac{1}{ - 36} \div x = \frac{1}{9}$

$x = \frac{1}{9} \times - 36$

$x = - 4$