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Mathematics 7 Online
OpenStudy (anonymous):

solve the inequality |x+6| > 15

OpenStudy (jdoe0001):

\(\bf |x+6| > 15 \implies \begin{cases} +(x+6) > 15\\ \quad \\ \bf -(x+6) > 15 \end{cases}\)

OpenStudy (jdoe0001):

so you'd get 2 values for "x", one for each scenario

OpenStudy (anonymous):

2 values one is negative the other is positive

OpenStudy (anonymous):

9 and -21

OpenStudy (anonymous):

so it will be one postivie answer and the other one negative?

OpenStudy (anonymous):

yea yea yea

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

because it's the absolute value where the numbers inside the | | is positive because it is the distance from zero

OpenStudy (anonymous):

x > –21 or x < 9 x < –21 or x > 9 –9 < x < 9 –21 < x < 9 does the sign change?

OpenStudy (anonymous):

-21>x>9 is the answer

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