Question

O is the center of the above circle. If AD=2x+5 and DC=3x-2, what is x? Type your answer as a number in the blank without "x=".

Answer 1

7

Explanation:

OB bisects CB

So,

AD = DC

2x + 5 = 3x - 2

3x - 2 = 2x + 5

3x - 2x = 5 + 2

x = 7