AE=C+I+G\mathrm {AE=C+I+G}AE=C+I+G
AE=C+I\mathrm {AE=C+I}AE=C+I
AE=C+I+G+(X+M)\mathrm {AE=C+I+G+(X+M)}AE=C+I+G+(X+M)
AE=C+I+G+(X−M)\mathrm {AE=C+I+G+(X-M)}AE=C+I+G+(X−M)