Question

∠E and ∠F are vertical angles with m∠E=5x+10 and m∠F=7x−12 . What is the value of x?

Answer 1

Vertical angles are always equal, I remember them as opposite angles are always equal when two lines intersect :)

5x+10=7x-12  subtract 5x from both sides

10=2x-12 add 12 to both sides

22=2x  divide both sides by 2

x=11°

Answer 2

Answer:

x=11

Step-by-step explanation:

right answer just took the test