SOLUTION: Solve, and express the answer in set notation: |9 - 2x| <5
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Absolute-value
-> SOLUTION: Solve, and express the answer in set notation: |9 - 2x| <5
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Algebra: Absolute value
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Question 92022
:
Solve, and express the answer in set notation:
|9 - 2x| <5
Answer by
mathispowerful(115)
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|9 - 2x| <5
-5 <9 - 2x < 5, then subtract 9
-14 < -2x < -4 , then divide by -2, change "<" to ">"
7> x > 2
rewrite it: 2 < x < 7
so {x | 2 < x < 7 }