Answer:

Step-by-step explanation:
We have been given the equation

Take square root both sides. When ever we take square root, we include plus minus sign

Now, subtract 6 to both sides of the equation

Divide both sides by 5


In decimal we have

Answer:
53 degrees
Step-by-step explanation:
Vertical angles are congruent so...
65x-12=43x+10
22x=22
x=1
Then add it into the equation of ∠A
m∠A= 65(1)-12
65-12
53
Answer:
39
Step-by-step explanation:
i hope this help