If E=mc2 and F=ma are correct equations then these can be merge via certain methods as follow:
E+F =mc2 +ma or
E-F =mc2 - ma or
E-ma =mc2 -F or
EF=ac2m3 or
F/E =a/c2
To make it easier, you can do any operation with one side of equation 2 to one side of equation 1
as long as you do the same with other side of equation 2 to the other side of equation 1. More equations
means more number of ways to merge them in single equation or formulation.