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2x + y = 8
rubah 2x + y = 8 ..... y = 8 - 2x
subtitusi ke 2x + 3y = 12 ...... 2x + 3(8 - 2x) = 12
2x + 24 - 6x = 12
- 4x = - 12
x = 3
rubah y = 8 - 2x ..... 2y = 16 - 4x
cari nilai Z
= 3x + 2y
= 3x + (16 - 4x)
= 3.3 + (16 - 4.3)
= 9 + 16 - 12
= 13
nilai optimum = 13.
kalo masi bingung tanya aja..