Yes, it goes like:
amplifier + speaker = cable, which in turn means:
speaker = cable - amplifier
or
amplifier = cable - speaker
obviously, neither speaker nor amplifier can be a negative quantity, which means that cable > speaker and cable > amplifier.
amplifier + speaker = cable, which in turn means:
speaker = cable - amplifier
or
amplifier = cable - speaker
obviously, neither speaker nor amplifier can be a negative quantity, which means that cable > speaker and cable > amplifier.