Jawaban:
Rp 41.000
Penjelasan dengan langkah-langkah:
pulpen = x = Rp 4.000
Buku tulis = y = Rp 7.000
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Jawaban:
Rp 41.000
Penjelasan dengan langkah-langkah:
pulpen = x = Rp 4.000
Buku tulis = y = Rp 7.000