Question

sistemas de ecuaciones 3x3 ayuden xfa
x+y+z=6
x-y+2z=5
x-y-3z=10​

Answer 1

x+y+z=6

x=6-y-z

x=6-y-z,y€R

x-y+2z=5

x=5+y-2z

x-y-3z=10

x=10+y+3z