Hi Please tell me why is the answer not B ?
q) Is 5|x| = y - 2z?
5x + y = 2z
x < 0
My question is why is (2) not sufficient alone ?
from the prompt we have : |x| = y-2z / 5
so either x > 0 , then x = ( y-2z ) / 5
or x <0
then x = - { (y -2z) / 5 }
= 2z-y / 5 ??
q) Is 5|x| = y - 2z?
5x + y = 2z
x < 0
My question is why is (2) not sufficient alone ?
from the prompt we have : |x| = y-2z / 5
so either x > 0 , then x = ( y-2z ) / 5
or x <0
then x = - { (y -2z) / 5 }
= 2z-y / 5 ??
