Question

ZE and ZF are vertical angles with mZE = 5x + 10 and mZF = 7x – 12. What is the value of x? Enter your answer in the box. X=

Answer 1

If ZE and ZF are vertical angles , then;

mZE = mZF

5x+10 = 7x - 12

collect like term

7x - 5x = 10+ 12

2x = 22

Divide both-side of the equation by 2

x = 11