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7xy4z=197 \mathrm{x}-\mathrm{y}-4 \mathrm{z}=19 3x8z=43 x-8 z=-4 7y+z=97 \mathrm{y}+\mathrm{z}=9 A) {(4,1,8)}\{(-4,1,8)\} B) {(4,1,2)}\{(4,1,2)\}

Question 81

Multiple Choice

7xy4z=197 \mathrm{x}-\mathrm{y}-4 \mathrm{z}=19
3x8z=43 x-8 z=-4
7y+z=97 \mathrm{y}+\mathrm{z}=9


A) {(4,1,8) }\{(-4,1,8) \}
B) {(4,1,2) }\{(4,1,2) \}
C) {(4,2,1) }\{(4,2,1) \}
D) {(4,8,1) }\{(-4,8,1) \}

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