Question

HELP Please
x+y+2=1
2x+4y+2z=8
-x+7y-3z=27

Answer 1

x = -104/25
y = 79/25
z = -6/25

Answer 2

\[\color{blue}{x+y+2=1}\]
\[\color{red}{x+y=1-2}\]
\[\color{brown}{x}\color{orange}+\color{green}y\color{dark green}=\color{black}-\color{black}1\]
similarly continue on