Jadi, nilai x tersebut adalah 4 (opsi A).
20x + 10 - 15 × 12 ÷ 5 = 54
20x + 10 - 180 ÷ 5 = 54
20x + 10 - 36 = 54
20x - 26 = 54
20x = 54 + 26
20x = 80
x = 80/20
x = 4/1
x = 4
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PEMBAHASAN
Kesimpulan:
Jadi, nilai x tersebut adalah 4 (opsi A).
20x + 10 - 15 × 12 ÷ 5 = 54
20x + 10 - 180 ÷ 5 = 54
20x + 10 - 36 = 54
20x - 26 = 54
20x = 54 + 26
20x = 80
x = 80/20
x = 4/1
x = 4