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

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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