Respuesta :

Answer: x=9

Step-by-step explanation:

(x-5)+7=11

Subtract 7 from both sides

(x-5)=4

Take away the parenthesis

x-5=4

Add 5 from both sides

x=9

x=9 is your final answer

Answer:

x = 21

Step-by-step explanation:

Given

[tex]\sqrt{x-5}[/tex] + 7 = 11 ( subtract 7 from both sides )

[tex]\sqrt{x-5}[/tex] = 4 ( square both sides )

x - 5 = 16 ( add 5 to both sides )

x = 21

As a check

[tex]\sqrt{21-5}[/tex] + 7 =[tex]\sqrt{16}[/tex] + 7 = 4 + 7 = 11 ← True

Hence x = 21 is the solution