high power led driver circuit design and application supplied cd rom power supplies for led driving

high power led driver circuit design and application supplied cd rom power supplies for led driving

Matematika (3d + 4e = 17)/(d + 2e = 9)​

(3d + 4e = 17)/(d + 2e = 9)​

Jawaban:

d = -1

e = 5

Penjelasan dengan langkah-langkah:

3d + 4e = 17

d + 2e = 9 → dengan cara eliminasi akan dikalikan 2

3d + 4e = 17

2d + 4e = 18

---Eliminasi

(3d - 2d) + (4e - 4e) = (17 - 18)

d = -1

Kalo mau cari e, subtitusi salah satu persamaan:

d + 2e = 9

-1 + 2e = 9

2e = 10

e = 5

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