Respuesta :

Answer:

B) [tex]x=9[/tex]

Step-by-step explanation:

[tex]\sqrt{x}+9=12\\\\\sqrt{x}=3\\\\x=9[/tex]

fieryanswererft

Answer:

B. [tex]x = 9[/tex]

Step-by-step explanation:

[tex]\sqrt{x} +9 = 12[/tex]

[tex]\sqrt{x} = 12 -9[/tex]

[tex]\sqrt{x} = 3[/tex]

                        [ changing sides, changed square root to square ]

[tex]x = 3^2[/tex]

[tex]x = 9[/tex]