Question

1
_ y -x = -2
3

3y+3=1,5

Answer 1

{1/3*y-x=-2⇒y-3x=-6
{3y+3=1,5⇒3y=3-1,5⇒3y=1,5⇒y=1,5:3⇒y=0,5
0,5-3x=-6
3x=0,5+6
3x=6,5
x=6,5:3
x=2 1/6
(2 1/6;0,5)