6x – 5y + 3z = 22
4x + 8y – 11z = 7
5x – 6y + 2z = 12
Given the equations above, x + y + z = ?	Select the correct option: A) 10 B) 12 C) 13 D) 14 E) 15
(6x – 5y + 3z) - (5x – 6y + 2z ) = 22-12   or, x+y+z = 10   Option 10 is the ans
<result>A</result>
6x – 5y + 3z = 22
4x + 8y – 11z = 7
5x – 6y + 2z = 12
Given the equations above, x + y + z = ?