Question

x+y+z=25 stim ca x+y=19 si y+z=18 sa se afle x*y*z=?

Answer 1

$19 + z = 25$
$z = 6$
$y + 6 = 18$
$y = 12$
$x + 6 + 12 = 25$
$x = 7$
$x \times y \times z = 6 \times 12 \times 7 = 504$
Coroniță pls