Question

calculati nr x din . 4 supra 1 = 1 supra x

Answer 1

$\frac{x}{4} = \frac{1}{x} =>$ (inmultim pe diagonala)

4 * 1 = x * x

=> 4 = 2x

=> 2x = 4

=> x = 4 : 2

=> x = 2