Balancing Equations

The need for solving equations arises from a desire to know what values of an unknown will give a required quantity e.g. the exact quantity of salt peter required to make 20kg of gunpowder or, as in the video at the bottom of this page, working out when/where the next "Freak Wave" will strike by substituing in wind speeds, current strengths etc. into a series of mathematical equations. When we solve mathematical equations...

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