Question

HELP PLEASE!!! 5-6! Help!!!

Answer 1

Explanation:

5

x + y = 5 => x = 5 - y

y - 4 = - x

=> y - 4 = - ( 5 - y)

=> y - 4 = - 5 + y

=>4 = 5 , not true

So, no solution => system is inconsistent

6

option b

Explanation just as above.