Question

What is the solution to the system of equations?
-x+2y+2z=0
-x-27-2z=0
x -z=-1

Answer 1

you really should start doing these by yourself...

Answer 2

i get it but i dont seem to get the last part?

Answer 3

last part? elaborate.

Answer 4

-1 2 2 =0
-1 -2 -2 =0
1 0 -1 =1

Answer 5

wait. you have -27? in your question? is that meant to be -2y?

Answer 6

yeah im sorry -2y

Answer 7

your system should be

-1 2 2 0
-1 -2 -2 0
1 0 -1 -1

Answer 8

using your calculator or some tedious row reducing by hand we get (x,y,z)=(,0,-1,1)

Answer 9

okay but how do you find or what do you do to find the answer for x,y, and z

Answer 10

alrighty. this is going to take a while to explain.

Answer 11

for any matrix we want to row reduce, we want to get this...