Revision history of "(first,second) - (third) = (first,second) unchanged" (Z12859)

Nam idiongho ke mmana: Adogho ikara ke ufa mkpo, se si diangha yung fig duk or mmana abagha ke isung.
Akamba: (idagha mi) = adiangha ke ufa mkpo, (edem) = adiangha ke akan mkpo, m = etuk ukpugho mkpo.