Vector

[quasi jay]

There isn’t a b in the second one so you can’t

Unless it’s supposed to be after the -9/2

Then you would take out a 3

[golden wraith]

oh wait its meant to b -9/2 b

xy = - 3/2 b+ a
yz = -9/2 b + 3a

[modest sinew]

Oh ok

I was confused

[quasi jay]

Yh so factor a 3 out of the second one

[quasi jay]

You’ve missed a minus in xy

[modest sinew]

yeah