6x – 5y + 3z = 27
4x + 8y – 11z = 7
5x – 6y + 2z = 12
Given the equations above, x + y + z = ?	Pick
A) 11 B) 12 C) 13 D) 14 E) 15
(6x – 5y + 3z) - (5x – 6y + 2z ) = 27-12   or, x+y+z = 15   Option 15 is the ans
<result>E</result>
6x – 5y + 3z = 27
4x + 8y – 11z = 7
5x – 6y + 2z = 12
Given the equations above, x + y + z = ?