I’m not good at solving for any letters, if you give me a head start of how to solve I’ll solve, I just can’t seem to learn how to start the equation. Please help

Im not good at solving for any letters if you give me a head start of how to solve Ill solve I just cant seem to learn how to start the equation Please help class=

Respuesta :

Okay, so on this type of question, the exterior angle equals the two interior angles added up, so you take 4x+7+6x-9=118 and then solve!

x=12 :)