subtitusi nili x 2x + 4y = -2 2(3) + 4y = -2 4y = -2 - 6 y = -8/4 y = -2
mka nilai : 4x + 3y = 4(3) + 3(-2) = 12 - 6 = 6
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fatziah
Pake eliminai sama subtitusi, maka 5x-2y=19lx2l= 10x-4y=38 2x+4y=-2lx1l= 2x+4y=-2 ditambah, jadi 12x= 36 maka x = 3 y= 5.3-2y=19 y=-2y=4 y=-2 maka nilai dari 4x+3y= 4.3+3.-2= 12+-6= 6
2x + 4y = -2
menjad :
10x - 4y = 38
2x + 4y = -2 +
12x = 36
x = 36/12
x = 3
subtitusi nili x
2x + 4y = -2
2(3) + 4y = -2
4y = -2 - 6
y = -8/4
y = -2
mka nilai :
4x + 3y = 4(3) + 3(-2) = 12 - 6 = 6
5x-2y=19lx2l= 10x-4y=38
2x+4y=-2lx1l= 2x+4y=-2
ditambah, jadi 12x= 36
maka x = 3
y= 5.3-2y=19
y=-2y=4
y=-2 maka nilai dari 4x+3y= 4.3+3.-2= 12+-6= 6