Question

Suppose M is the midpoint of segment CD, CM = 5x-12 and MD = 2x + 9. What is x?

Answer 1

x=7

Step-by-step explanation:

If M is the midpoint of segment CD, it means M divides CD into two equal parts (CM and MD). Therefore:

CM=MD

5x-12=2x+9

5x-2x=9+12

3x=21

x=21/3

x=7

The value of x is 7.