[tex]\bf \begin{cases} u=<-6,3>\\ v=<1,9> \end{cases}~\hspace{7em} \begin{array}{llll} u-v\implies <-6,3>-<1,9> \\\\\\ <-6-1~~,~~3-9> \\\\\\ <-7~,~-6> \end{array}[/tex]
