Question

find an ordered triple to represent x in x=3y-z if y=<2,-1,5> and z=<1,-6,6>

Answer 1

did you plug it in

Answer 2

do i add it or what?

Answer 3

$$
\Large x = 3~\cdot <2,-1,5> - <1,-6,6>\\
\Large = <3 \cdot 2, 3 \cdot(-1), 3 \cdot 5> - <1,-6,6>\\
\Large = < 6, -3, 15> - <1,-6,6>\\


$$

Answer 4

@SolomonZelman
I find that negative sign to be too big. do you know latex to shrink that

Answer 5

so it would be 5,3,9?