Question

2C + 1D + 3B = 1615
1C + 2D = 920
cari nilai B, C dan D​

Answer 1

Jawaban:

1C + 2D = 920

C = 920 - 2D

2C + 1D + 3B = 1615

2(920 - 2D) + 1D + 3B = 1615

1840 - 4D + D + 3B = 1615

-4D + D + 3B = 1615 - 1840

-3D + 3B = -225

3B = (-225) / 3

B = -75

C = 920 - 2D

C = 920 - 2(-75)

C = 920 + 150

C = 1070

Sekarang kita telah menemukan nilai B, C, dan D :

B = -75

C = 1.070

D = -75