If 2x + 3y - 5z = 18, 3x + 2y + z = 29 and x + y + 3z = 17, then what – McqOptions

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1.	If 2x + 3y - 5z = 18, 3x + 2y + z = 29 and x + y + 3z = 17, then what is the value of xy + yz + zx?
A.	32
B.	52
C.	64
D.	46
Answer» C. 64

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