Question

Resolva a equação
x!/(x-1)! =2

Answer 1

$\frac{x}{(x - 1) \times x} = 2 \\ \frac{1}{x - 1} = 2 \\ 2(x - 1) = 1 \\ 2x - 2 = 1 \\ 2x = 3 \\ x = \frac{3}{2}$