Hey!
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Steps To Solve:
~Square both sides
√x - 8² = 3²
~Simplify
x - 8 = 9
~Add 8 to both sides
x - 8 + 8 = 9 + 8
~Simplify
x = 17
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Answer:
![\large\boxed{x~=~17}](https://img.qammunity.org/2020/formulas/computers-and-technology/college/p7j0vkeengpexazijf0xkanmnfp8ish901.png)
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Hope This Helped! Good Luck!