Answer:
x = 7
Step-by-step explanation:
(5 + x)(5) = (6 + 4)(6) => secant-secant theorem
5*5 + 5*x = (10)(6)
25 + 5x = 60
Subtract 25 from each side
25 + 5x - 25 = 60 - 25
5x = 35
5x/5 = 35/5
