Answer:
equation is 2x - 18 = 81
Step-by-step explanation:
(x - 9)2 = 81
(2x - 18) = 81
taking the square root of both sides
[tex](\sqrt{2x - 18} ) = \sqrt{81}[/tex]
[tex](\sqrt{2x - 18})^2 = 81[/tex]
2x - 18 = 81
2x = 81 + 18
2x = 99
x = 99/2
x = 49.5
