Question

Daca xy-xz=165 si x=5 calculati : y-z=

Answer 1

x(y-z)=165; Y-z=165/5=33

Answer 2

$xy-xz=165 \\ x=5 \\ y-z=? \\ xy-xz=165 \\ x(y-z)=165 \\ 5(y-z)=165 \\ y-z=165:5 \\ \boxed{y-z=33}$