Jawaban:
10
Penjelasan dengan langkah-langkah:
langkah pengerjaan ada pada gambar
(4a + 41) + (a + 35) + 54 = 180
4a + 41 + a + 35 + 54 = 180
(4 + 1)a + 1300 = 180
5a + 90 = 180
5a = 180 - 130
5a = 50
a = 50/5
a = 10
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Jawaban:
10
Penjelasan dengan langkah-langkah:
langkah pengerjaan ada pada gambar
(4a + 41) + (a + 35) + 54 = 180
4a + 41 + a + 35 + 54 = 180
(4 + 1)a + 1300 = 180
5a + 90 = 180
5a = 180 - 130
5a = 50
a = 50/5
a = 10