Okay, Once Again The Value Of X Has Been Lost & It's Up To You To Find It.
1st. Divide Both Sides By -1/2, Dividing By -1/2 Is The Same As Multiplying By -2
2nd. Subtract 4 From Both Sides
3rd. Divide By The Coefficient Of X
4th.
The 3rd Step Is Technically Not Needed, Because We Know The Coefficient Of X In The Equation Is 1, If It Was Any Other Value, Then It's Needed.