Números y sentido numérico 7.1 a bide Estándar 7.1a 7.1b 7.10 7.1d 7.1e Puntuación de acción Puntuación de ciento. bueno lo que quiero saber es como se hace este tipo de matemática me dan un ejemplo?​

“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 .

X= -5because this is a single step equation so you would just have to divide -16 both sides for x to equal your solution