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5x+2y+z=115 x+2 y+z=-11 2x3yz=172 x-3 y-z=17 7x+y+2z=47 \mathrm{x}+\mathrm{y}+2 \mathrm{z}=-4 A) {(3,0,4)}\{(3,0,-4)\}

Question 84

Multiple Choice

5x+2y+z=115 x+2 y+z=-11
2x3yz=172 x-3 y-z=17
7x+y+2z=47 \mathrm{x}+\mathrm{y}+2 \mathrm{z}=-4


A) {(3,0,4) }\{(3,0,-4) \}
B) {(0,6,1) }\{(0,6,-1) \}
C) {(3,0,4) }\{(-3,0,4) \}
D) {(0,6,1) }\{(0,-6,1) \}

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