Find the ordered pair that solves the system \((u,v)\)
\({ u = -7 -2v {3u = 4v - 25}\)
\(u = -7 - 2v\\ 3u = 4v - 25 \\ 3(-7-2v)=4v-25\\ -21-6v=4v-25\\ 4=10v \\ v=\dfrac 2 5 \\ u = -7 - 2\left(\dfrac 2 5\right) = -\dfrac{39}{5}\)
+257 
