Question

Opa problema ai, faz ai :)

Answer 1

Resposta:

$\left \{ {{3x - 16 + y=180} \atop {2x + 10 + y=180}} \right. \\\\\\y = 180 - 3x + 16\\\\2x + 10 + 180 - 3x + 16 = 180\\\\-x = 180 - 180 - 16 - 10\\\\-x = -26\\\\x = 26$

$2 . (26) + 10 + y = 180\\\\52 + 10 + y = 180\\\\62 + y = 180\\\\y = 180 - 62\\\\y = 118$

Portanto y = 118°