IDNLearn.com helps you find the answers you need quickly and efficiently. Get comprehensive and trustworthy answers to all your questions from our knowledgeable community members.
Answer:
x = 10
Step-by-step explanation:
Lett angle 1 and angle 5 lie on the same straight line. This shows that they are supplementary
Hence;
<1 + <5 = 180
11x - 9 + 7x + 9 = 180
18x = 180
x = 180/18
x = 10
Hence the value of x is 10