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Mathematics 14 Online
OpenStudy (daniellelovee):

Which expression gives the x-coordinate of the solution of the system? 3x-y+z=9 x+2y+z=3 5x+6y+2x=2

OpenStudy (daniellelovee):

@dan815

OpenStudy (daniellelovee):

the answer is in matrix form but im confused

OpenStudy (thomas5267):

I am confused too. What is the original system?

OpenStudy (daniellelovee):

what?

OpenStudy (daniellelovee):

@uri

OpenStudy (daniellelovee):

@confluxepic

OpenStudy (daniellelovee):

@undeadknight26

OpenStudy (thomas5267):

What is the answer then?

OpenStudy (daniellelovee):

idk

OpenStudy (daniellelovee):

im asking for help

OpenStudy (thomas5267):

The first and second equation are normal but the third equation has one x in the z position. Combine the the two x's in the third equation into one then do Gaussian elimination.

OpenStudy (daniellelovee):

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