## Precalculus (6th Edition) Blitzer

$u+v=-i+2j$
We are given that the two vector equations for the vectors $u$ and $v$ as follows: $u= 2i-5j$ and $v=-3i+7j$ In order to add the two vectors, we will have to add their respective coefficients. $u+v=(2-3)i+(-5+7)j$ Hence, $u+v=-i+2j$