3 years ago

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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