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elena-14-01-66 [18.8K]
3 years ago
13

Help please k/2+9=30

Mathematics
1 answer:
Dafna11 [192]3 years ago
5 0
\frac{k}{2}+9=30\ \ \ | subtract\ 9\\\\
\frac{k}{2}=21\ \ \ | multiply\ by\ 2\\\\
k=42\\\\Solution\ is\ 42.
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