Is |x| = y - z?
(1) x + y = z
(2) x < 0
OA IS C
Okay...
So from the given info in the question stem I understand that
x = y - z
OR
-x= -y + z
Statement 1
x + y = z Simplified: x = z - y
Since this simplifies to the same thing as a possible value of x I consider it SUFFICIENT because it is equivalent to -x. However, the explanation indicates that this statement is NOT SUFFICIENT.
(1) x + y = z
(2) x < 0
OA IS C
Okay...
So from the given info in the question stem I understand that
x = y - z
OR
-x= -y + z
Statement 1
x + y = z Simplified: x = z - y
Since this simplifies to the same thing as a possible value of x I consider it SUFFICIENT because it is equivalent to -x. However, the explanation indicates that this statement is NOT SUFFICIENT.
Thanks for the wonderful explanation.
