Question

Спасите !!!!!!!!!!!!

Answer 1

$left { {{3- frac{2x}{z+1}=5 } atop {z-4(3-x)=6}} right. \ left { {{-2x-2z=2} atop {4x+z=18}} right. \ left { {{-x-z=1} atop {4x+z=18}} right. \ 3x=19 \ x= frac{19}{3} \ -2* frac{19}{3} -2z=2 \ z=-frac{22}{3} \ left { {{x= frac{19}{3} } atop {z=- frac{22}{3} }} right.$

Ответ: $( frac{19}{3};- frac{22}{3} )$