Bilangan 1 = x
Bilangan 2 = y
×××
PERSAMAAN 1
x - y = 4
x = 4 + y
...
PERSAMAAN 2
x + y = 20
Masukkan persamaan 1 ke 2
4 + y + y = 20
2y = 16
y = 8
x + 8 = 20
x = 12
x . y = 12 . 8
= 96
Jadi jawabannya D
× Mohon maaf bila ada kesalahan. Semoga membantu^^ ×
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Bilangan 1 = x
Bilangan 2 = y
×××
PERSAMAAN 1
x - y = 4
x = 4 + y
...
PERSAMAAN 2
x + y = 20
...
Masukkan persamaan 1 ke 2
4 + y + y = 20
2y = 16
y = 8
...
x + 8 = 20
x = 12
...
x . y = 12 . 8
= 96
Jadi jawabannya D
× Mohon maaf bila ada kesalahan. Semoga membantu^^ ×