Question

Rezolvati sistemul de ecuatii prin metoda reducerii
$\left \{ {{3x+y=-2} \atop {-5x-3y=2}} \right.$

Answer 1

3x+y= -2 | ·(-3)
-5x-3y=2 

-9x-3y= 6
-5x-3y=2 (scadem cele doua relatii)

⇒ -4x = 4⇒ x= -1

-3+y= -2⇒ y= 1

Answer 2

sper ca te-am ajutat