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x+y+z=7x+y+z=7 xy+2z=7x-y+2 z=7 5x+y+z=115 \mathrm{x}+\mathrm{y}+\mathrm{z}=11 A) {(1,4,2)}\{(1,4,2)\} B) {(1,2,4)}\{(1,2,4)\} C) {(4,2,1)}\{(4,2,1)\} D) {(4,1,2)}\{(4,1,2)\}

Question 66

Multiple Choice

x+y+z=7x+y+z=7
xy+2z=7x-y+2 z=7
5x+y+z=115 \mathrm{x}+\mathrm{y}+\mathrm{z}=11


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

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