Tentukan eliminasi dari: @ -8x+4y-3z=-2 @ 2x-3y+2z=-10 @ 5x-y=11
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Tentukan eliminasi dari:
@ -8x+4y-3z=-2
@ 2x-3y+2z=-10
@ 5x-y=11
@ -8x+4y-3z=-2
@ 2x-3y+2z=-10
@ 5x-y=11
1 Jawaban
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1. Jawaban fahmifari
-8x+4y-3z=-2 x 2
2x-3y+2z=-10 x3
= -16x+8y-6z=-4
6x-9y+6z=-30
............................+
-10x-y = -34
5x-y = 11
..............................-
-15x = -45
x = 3
-10x-y = -34
-10.3-y = -34
-30-y = -34
-y = -34+30
-y = -4
y = 4
-8x+4y-3z=-2
-8x3 + 4x4 -3z = -2
-24 + 16 - 3z = -2
-8 -3z =-2
-3z = 6
z = -2