solve the inequality |x+6|>15
If |u|>15, this means we are looking for all values of u that have distant greater than 15 from 0. So numbers that would give us that distance is the interval outside of [-15,15]. Which means u>15 or u<-15. The other difference between my statement and your statement is that I have a u between the | | marks. Just replace my u with x+6 and then solve both inequalities.
these are my choices to choose from A. X>-21 or x<9 B.X<-21 or X>9 C.-9<x<9 B.-21< x <9
\(\bf |x+6|>15\implies \begin{cases} +(x+6)>15\\ \quad \\ \bf -(x+6)>15 \end{cases}\) thus 2 values for "x", one for each scenario
solve the inequality |x+6|>15
solve the inequality |x+6|>15these are my choices to choose from A. X>-21 or x<9 B.X<-21 or X>9 C.-9<x<9 B.-21< x <9
well, solve the 2 scenarios, and you'll see which one matches
so it a
B
c
OR D
Can I see your attempt to solve the inequality so I can say if you are wrong or where you messed up on a step?
We have two inequalities to solve. Here is the first one: \[x+6>15 \] What do we need to do to get x by itself?
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