4x+(2/3)=2(x-(2/3))
4x+(2/3)= 2x-(4/3)
2x=(-4/3)-(2/3)
2x=(-6/3)
2x=-2
x=-1
проверка : 4*(-1)+ (2/3)=2*((-1)-(2/3))
-4+2/3=-2-(4/3)
(-12/3)+(2/3)=(-6/3)-(4/3)
-10/3=-10/3
ч.т.д.
4x+(2/3)=2(x-(2/3))
4x+(2/3)= 2x-(4/3)
2x=(-4/3)-(2/3)
2x=(-6/3)
2x=-2
x=-1
проверка : 4*(-1)+ (2/3)=2*((-1)-(2/3))
-4+2/3=-2-(4/3)
(-12/3)+(2/3)=(-6/3)-(4/3)
-10/3=-10/3
ч.т.д.