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ELIMINASI
2.5x-4y=4 ->×3 ->15x-12y=12
3x-2y=3 ->×5 ->15x-10y=15
----------------- -
2y= -3/2
y=1,5
5x-4y=4 -> ×2 -> 10x-8y=8
3x-2y=3 -> ×4 -> 12×-8y=12
----------------- -
-2x= -4
X=-4/-2
X=2
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