Question

помогите или я вскроюсь ​

Answer 1

$\displaystyle \sqrt{x-4}=5\\x-4=25\\x=25+4\\x=29$

Answer 2

$\sqrt{x - 4} = 5 \\ ( \sqrt{x - 4} ) {}^{2} = 5 {}^{2} \\ x - 4 = 25 \\ x = 25 + 4 \\ x = 29$