Question

a soluçao do sistema 2x-y=3 X+Y=3 E IGUAL A:

Answer 1

3x=6, x=2 lll 2(2) -y=3 ,1=y lll

Answer 2

{x+y=3
{2x-y=3
x=3-y
2(3-y)-y=3
6-2y-y=3
-2y-y=3-6
-3y=-3
y=-3/-3
y=1
x=3-1
x=2
espero ajudar ♥