Question

me podria ayudar por favor

Answer 1

7y-z=x+2

7y-z-x=2

-x+7y-z=2

x+y=-2x+z

x+y+2x-z=0

3x+y-z=0

10x-3y+9z=1

-x+7y-z=2

3x+y-z=0

10x-3y+9z=1

-x+7y-z02

-x+7y-z=2

3x+y-z=0

x+60y=19

-4x+6y=2

x+60y=19

-4x+6y=2

$x=-\frac{1}{41}\\ y=\frac{13}{41}$

$-(-\frac{1}{41}) +7x\frac{13}{41} -z=2$

$z=\frac{10}{41} \\(x,y,z)=(-\frac{1}{41} ,\frac{13}{41},\frac{10}{41} \\10x(-\frac{1}{41} -3x\frac{13}{41} +9x\frac{10}{41} =1\\7x\frac{13}{41} -\frac{10}{41} =(\frac{1}{41})+2\\ (-\frac{1}{41} +\frac{13}{41} =-2x(\frac{1}{41} +\frac{10}{41} \\1=1\\\frac{81}{41} =\frac{81}{41} \frac{12}{41} =\frac{12}{41} \\(x,y,z)=(\frac{1}{41} ,\frac{13}{41} ,\frac{10}{41}$