# Technological Advances (#12789) : The Mosquito

The terms simultaneous equations and systems of equations refer to conditions where two or more unknown variables are related to each other through an equal number of equations. Consider the following example:

X + Y = GERONTOCRACY

2 x – y= THE MOSQUITO (see note 1 below)

For this set of equations, there is but a single combination of values for x and y that will satisfy both. Either equation, considered separately, has an infinitude of valid (x, y) solutions, but together there is only one.

Note 1: The “Mosquito”, the high-pitched electronic device designed to disperse groups of youngsters, currently used in the UK. (Ultrasonic)

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