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Mathematics 23 Online
OpenStudy (anonymous):

What are the solutions of the equation? |x| + 8 = 2 A) x = -2 or x = 2 B) x = -6 or x =6 C) x = -8 or z = 8 D) no solution

OpenStudy (acxbox22):

subtract 8 from both sides

OpenStudy (acxbox22):

and tell me what you get

OpenStudy (anonymous):

0 and -6

OpenStudy (acxbox22):

no just tell me the equation after subtrating 8 from both sides

OpenStudy (anonymous):

|x| + 0 = -6

myininaya (myininaya):

@KALIAN what did we just talk about before?

myininaya (myininaya):

can |x| this ever give us a negative output?

OpenStudy (acxbox22):

yes since the equation is now IxI=- is the equation and the absolute value of any number can never be negative what do you think is the answer?

OpenStudy (acxbox22):

*-6

OpenStudy (anonymous):

so the answer's B ?

myininaya (myininaya):

|x|>0 or |x|=0 but |x| is never less than 0? do you understand this?

OpenStudy (anonymous):

yes, |x| is greater or equal to 0 no matter what

myininaya (myininaya):

exactly so how could |x| ever by -6 for any x?

OpenStudy (anonymous):

well that other person posted *-6 so i just asked. Wouldnt this one be no solution too ?

myininaya (myininaya):

yes no solution |x| can never be -6 for any x this sentence i just said translates to no solution

OpenStudy (anonymous):

YAY !

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