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16 votes
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=

User Roumelis George
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1 Answer

15 votes
15 votes

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

User Mmacaulay
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