-3x + 4y = -2 dan 2x + 7y = -3 metode substitusi
mdsmut
-3x+4y=-2|2|=> -6x+8y= -4 2x+7y=-3|3|=> 6x+21= -9 29y=13 Y=2,23 -3x+4y=-2( diganti 2, 23) -3x+4(2,23) =-2 -3x+ 8,92=-2 -3×= -10,92 X= 3,6
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