nurselisab03 nurselisab03

16-08-2017
Mathematics

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-3y -4z=-20. -2x-4z=-20. 5x +3y+z=5

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kphung76127 kphung76127

16-08-2017

-3y-4z=-20
2x+4z=20
-3y+2x=0

-2x-4z=-20
20x+12y+4z=20
18x+12y=0

2x-3y=0
18x+12y=0

18x+12y=0
8x-12y=0
26x=0
x=0

2(0)-3y=0
0-3y=0
-3y=0
y=0

5(0)+3(0)+z=5
z=5

Final answer: x=0, y=0, z=5

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