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Math  /  Algebra

QuestionIve the equation beior 2∣3r−9∣−1=23r={−7,7}r={1,7} t) r={−7,1} D) r={−1,7} posting on on Twitter  D)  singing waffles karaoke \begin{array}{c} 2|3 r-9|-1=23 \\ \begin{array}{c} r=\{-7,7\} \\ r=\{1,7\} \\ \text { t) } r=\{-7,1\} \\ \text { D) } r=\{-1,7\} \\ \text { posting on on Twitter } \\ \text { D) } \quad \text { singing waffles karaoke } \end{array} \end{array}

Studdy Solution
The solutions for r r are r=7 r = 7 and r=−1 r = -1 . Check which option matches these solutions:
- Option D: r={−1,7} r = \{-1, 7\}
The correct answer is:
{−1,7} \boxed{\{-1, 7\}}

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