Solving for an variable in a denominator (with exponent)

[WB67605]

-1/x^2 = -4

I'm totally drawing a blank, and the only posts/lessons I've been able to find involve variables in the numerator.
If it's any help, the answer to this step is:

x^2= 1/4

I know how to solve from there, but this step is killing me. What is the process.

Thanks!

[WB67605]

Success!

Simply multiply both sides by -x^2 (reciprocal of the fraction) then solve for -1 = -4x^2.

Thanks anyway!