Question

{3х-у=3
{3х-2у= 0

-4<2х-1<2

х2(в квадрате) - 9 > 0

Answer 1

{3x-y=3|*2
{3x+2y=0
+{6x-2y=6
+{3x+2y=0
9x=6:9
x=2/3
2/3*3-y=3
-y=3-2
-y=1:(-1)
y=-1