Which system is inconsistent and independent?

Consider the last set of equations:-

x - y - z = 2(1)

x + y - z = 3(2)

-x + y + z = 4(3)

Subtract:-  (2) - (1)       (x and z's disappear):-

2y = 1

y = 1/2

Now add:- (2) + (3):-

2y = 7

y = 3 1/2

Therefore this set is

inconsistent  and independent.

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation: