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Help please k/2+9=30

Help please k/2+9=30
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Help please k/2+9=30

User Cheetha
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(k)/(2)+9=30\ \ \ | subtract\ 9\\\\ (k)/(2)=21\ \ \ | multiply\ by\ 2\\\\ k=42\\\\Solution\ is\ 42.
User Vic Torious
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