17 + 2 x = 31 − 5 x 2 x + 5 x = 31 − 17 7 x = 14 x = 7 14 = 2
To solve the equation 17 + 2 x = 31 − 5 x , we rearranged the terms to isolate x . After simplifying the equation, we found that x = 2 . The answer is verified by substituting back into the original equation.
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Jawaban:Tergantung:Untuk = 3,7 V =270 mAh dan untuk:= 5 V = 200 mAh.Penjelasan:Untuk mengubah kapasitas dari watt‑hour (Wh) ke milliamp‑hour (mAh), kita perlu mengetahui tegangan (V) tempat energi itu diukur, karena:Wh = Ah × Vdan Ah = Wh/v, mAh = Ah × 1000Maka:mAh = 1 Wh × 1000/VJika berbicara tentang sel Li‑ion 3,7 V (baterai ponsel, powerbank isi ulang, dll):Maka1 Wh = 1 × 1000/3.7 = 270,3 mAhJika yang dimaksud adalah output USB 5 V (powerbank terukur di sisi output):Maka:1 Wh = 1 × 1000/5 = 200 mAh