5x - Зу = -7 — 2x – 3y = 19
WHICH method would be best to solve these ? Elimination, Graphing, Substitution, or none of these

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .