Question

$|2x + 5| + |y - 1| = 0$
Va rogg

Answer 1

|2x+5|>=0

|y-1|>=0

__________+

|2x+5|+|y-1|>=0

Dar |2x+5|+|y-1|=0

Asta daca si numai daca |2x+5|=0 si |y-1|=0

|2x+5|=0 => 2x+5=0 => 2x=-5 => x=-2,5

|y-1|=0 => y-1=0 => y=1