angelross2000 angelross2000
  • 17-10-2018
  • Mathematics
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solve the equation √x+9 - 9 = -4 show each step of your solution process

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altavistard
altavistard altavistard
  • 17-10-2018

Answer:

16

Step-by-step explanation:

Start by adding 9 to both sides, obtaining:  √(x + 9) = 5.

Square both sides, obtaining:   x + 9 = 25.

Subtract 9 from both sides:  x = 16

Note that √(16+9) - 9 = -4, as required.


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