bro when even will i need this in real life ? but anyways help pt 3

Answer: 127.5
Step-by-step explanation:
You will literally never use this l mao
but you start by writing out
2x+7+6x-9=180
then you get x=22.75
and enter that into the largest angles equation
6(22.75)-9
and get the answer: 127.5
Answer:
Answer: 127.5
Step-by-step explanation:
He's/she's right. You will literally never use this in Life unless you go to college or is helping someone. xD
Hope this helps
-LordKaoz047