Answer:
[tex]x = 8[/tex]
Step-by-step explanation:
[tex] {x}^{2} = 64 \\ \sqrt{ {x}^{2} } = \sqrt{64} \\ \sqrt{ {x}^{2} } = \sqrt{ {8}^{2} } \\ x = 8[/tex]
the step is 12-12+25thats the answer
