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Mathematics 8 Online
OpenStudy (countrygirl1431):

Solve |x| = -15 { } {-15} {-15, 15}

OpenStudy (whovianchick):

x=-15 x=15, so C

OpenStudy (whovianchick):

If there's absolute value bars, that means whatever's inside it equals the negative and positive versions of the other side of the equation. So, that means the positive version and negative version of -15, which are -15 and 15

OpenStudy (countrygirl1431):

Solve |x| = 10 {-10 < x < 10} {-10, 10}*** {10}

OpenStudy (whovianchick):

So it'd be C. -10, 10 Good job! I saw your little *** I assume you mean you think it's right?

OpenStudy (countrygirl1431):

yeah

OpenStudy (phi):

|x| = -15 you might remember that | any number| will be 0 or positive (the absolute value sign makes whatever is inside positive) so you have the problem of what positive number = - 15 guess what? there isn't one.

OpenStudy (whovianchick):

There isn't one what?

OpenStudy (whovianchick):

Wait no you're right there's no solution because the absolute value of x would have to be positive I'm super sorry @countrygirl1431 Give the medal to @phi he/she totally caught my mistake

OpenStudy (countrygirl1431):

so would it just be 10 @whovianchick

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