Respuesta :

mericbalak1
Hi @Tanzite!

I'm not sure if you type your question correctly. If yes, looks so easy for the college level.

2x + x + 90 = 180
3x + 90 = 180
3x = 180 - 90
3x = 90
x = 90/3
x = 30

Let me know if this works for you.