1. move 78.2 over to the over side. This will give you 287-78.2.
2. when you have .5x = 208.8, divide both sides by .5
3. this should give you x= 417.6
4. make sure to check your work by plugging you answer back into x.
x*78.2+0.5=287
x*78.2*10+0.5*10=287*10
782+5=2870
782x+5-5=2865
782x=2865
782x/782=2865/782
2865/782
