Eq 1 : `x+4z=1`
Eq 2 : `x+y+10z=10`
Eq 3 :`2x-y+2z=-5`
Multiply equation 1 by -1,
`-1(x+4z)=-1`
`-x-4z=-1`
Now add the above equation and equation 2,
`(-x-4z)+(x+y+10z)=-1+10`
Eq 4:`y+6z=9`
Multiply equation 1 by -2,
`-2(x+4z)=-2`
`-2x-8z=-2`
Now add the above equation and equation 3,
`(-2x-8z)+(2x-y+2z)=-2+(-5)`
Eq 5 : `-y-6z=-7`
Now add the equation 4 and equation 5 i.e.,
`y+6z=9`
`-y-6z=-7`
adding the above equations,
0=2
Hence the equations are inconsistent and have no solution
No comments:
Post a Comment