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Mathematics 21 Online
OpenStudy (anonymous):

-5√x-9-7=23

OpenStudy (pfenn1):

Is this your equation?\[-5\sqrt{x}-9-7=23\]

OpenStudy (anonymous):

yea

OpenStudy (pfenn1):

-9-7=-16 Add 16 to both side of the equation, then divide both sides by -5.

OpenStudy (anonymous):

so what would be the final answer than?

OpenStudy (pfenn1):

\[-5\sqrt{x}-16=23\]\[-5\sqrt{x}=39\]

OpenStudy (pfenn1):

So what is x?

OpenStudy (anonymous):

-5?

OpenStudy (pfenn1):

How did you get that?

OpenStudy (anonymous):

im not sure could you just tell me the answer and than well solve it and see how you got it?

OpenStudy (pfenn1):

\[\sqrt{x}=-\frac{39}{5}\]

OpenStudy (pfenn1):

Are you certain that the equation we started with is correct because √x cannot be a negative number?

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