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
