Answer
$\lt 8, -7 \gt$
Work Step by Step
Our aims is to add two vectors , in order to this we will simply add add the vertical component together to get the vertical component of sum , and the horizontal components together to get the horizontal component of sum.
Thus, we have:
$u=\lt -2, 5 \gt $ and $v = \lt 4, 3 \gt $
Therefore,
$u+v-3u = \lt -2+4, 5+3 \gt -3 \lt -2,5 \gt \\ \lt 2, 8 \gt -\lt -6, 15 \gt \\= \lt 2+6, 8-15 \gt \\= \lt 8, -7 \gt$
