Jawaban:
A. 35
Penjelasan dengan langkah-langkah:
2x + 20 = 90
2x = 90 - 20
2x = 70
x = 35 (A)
Pengganti Nilai x =
2x° + 20° = 90°
2x° = 90° - 20°
2x° = 70°
x = 70° ÷ 2
x = 35°
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Jawaban:
A. 35
Penjelasan dengan langkah-langkah:
2x + 20 = 90
2x = 90 - 20
2x = 70
x = 35 (A)
✏JAWABAN:
Pengganti Nilai x =
2x° + 20° = 90°
2x° = 90° - 20°
2x° = 70°
x = 70° ÷ 2
x = 35°