hasil 2x - (-(4x-8))???

2x-(-(4x-8))=0
2x+4x-8=0
6x=8
x=8/6
x=4/3.
x=1,33
.
=2x-(-(4x-8))
=2(1,33)-(-(4(1,33)-8))
=2,66-(-(5,32-8))
=2,66-(-(-2,68))
=2,66-2,68
=(-0,02)