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OpenStudy (anonymous):
Ix-7I<2
absolute value.....I don't understand the answer
5
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OpenStudy (dumbcow):
|x-7| could be positive or negative up to 2 so -2<x-7 <2 add 7 on both sides 5<x<9
OpenStudy (anonymous):
Yeah, the thing to remember is: \[|a| < b \iff -b<a < b\]
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