<span>-12+2b=12-6b
-12+8b=12
8b=24
b=3</span>
Answer:
400cm
Step-by-step explanation:
Answer:
-24
Step-by-step explanation:

Answer:
y = 3
Step-by-step explanation:
39 = 13y
y = 3 (explanation: by dividing 13)
Check answer:
39 = 13(3)
39 = 39
Y° = y₁° (opposite or Vertical angles), but y₁ = 45° corresponding angles,
then y = 45°