Kuis:
a + b + c = 6
a - b = c
ab - c = a + b
Tentukan nilai ab²c³
a + b + c = 6
a - b = c
ab - c = a + b
Tentukan nilai ab²c³
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Eliminasi (1) dan (2)
a + b + c = 6
a - b - c = 0
------------------ +
2a = 6
a = 3
Eliminasi (1) dan (3)
a + b + c = 6
a + b + c = ab
------------------ -
0 = 6 - ab
ab = 6
3 x b = 6
b = 2
Subtitusi ke (2)
a - b - c = 0
3 - 2 - c = 0
1 - c = 0
c = 1
ab²c³ = 3 x 2² x 1³ = 3 x 4 x 1 = 12