Question

Va rog rapid!........................... ​

Answer 1

|2x-y+1|+|x+2y+3|=0   (1)

|2x-y+1|≥0    (2)

|x+2y+3|≥0   (3)

Din (1), (2) si (3) =>

2x-y+1=0 si

x+2y+3=0

y=2x+1

=> x+2(2x+1)+3=0

x+4x+2+3=0

5x=-5 => x= -1

y= -2+1

y= -1