3x=8-2y
x=(8-2y)/3
3(8-2y)+2y=8
24-6y+2y=8
-4y=-16
y=4
3x+2(4)=8
3x+8=8
3x=0
x=0
3(0)+2(4)=8
x=0,y=4
Step-by-step explanation:
sin^-1√-3/2=300°
cos300°=0.5