Penjelasan dengan langkah-langkah:
[tex] \frac{9}{9 + 3} = \frac{12}{12 + p} \\ 9(12 + p) = 12(9 + 3) \\ 108 + 9p = 144 \\ 9p = 144 - 108 \\ 9p = 36 \\ p = 36 \div 9 \\ p = 4cm[/tex]
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Penjelasan dengan langkah-langkah:
[tex] \frac{9}{9 + 3} = \frac{12}{12 + p} \\ 9(12 + p) = 12(9 + 3) \\ 108 + 9p = 144 \\ 9p = 144 - 108 \\ 9p = 36 \\ p = 36 \div 9 \\ p = 4cm[/tex]