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An inequality is shown below. |3x+9|≥36 Which values of x makes the expression true. a) x≤−15 or x≥9 b) x≥−15 or x≤9 c) x≥−9 or x≤15 d) x≤−9 or x≥15
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An inequality is shown below.

|3x+9|≥36

Which values of x makes the expression true.

a) x≤−15 or x≥9

b) x≥−15 or x≤9

c) x≥−9 or x≤15

d) x≤−9 or x≥15

User TimE
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1 Answer

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You need to break this up into 3x+9≥27 to get x≥9 and 3x+9≤-36 to get x≤-15.
The correct answer would be a
User Vvondra
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