The equation in the first row is:
Easting sub n equals EastGPS sub one plus the Scale times the quantity cosine of AngleAdj times EastBT sub n minus the sine of AngleAdj times NrthBT sub n
Similarly, the equation in the second row is:
Northing sub n equals NrthGPS sub one plus the Scale times the quantity sine of AngleAdj times EastBT sub n plus the cosine of AngleAdj times NrthBT sub n