This one is super difficult, I see your struggle but the answer is A.
Answer:
4
Step-by-step explanation:
b+12 =16
-12. -12
b = 4
hope this helps
Well combine:
2x + 3x + x + 60 = 180
combine like terms:
6x + 60 =180
then move the 60:
6x = -120
now divide both sides by 6:
x= -20
i hope this helped! :)