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Beginning Pre-Calculus for Game Developers by Boris Meltreger, John P. Flynt

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Variations on Themes

While it is best to conform to the basic addition and multiplication routines for solving systems of equations, in a few instances, you benefit if you perform a few preliminary activities to make your work easier. The actions you take involve practical measures that you often take when working with fractions.

Change the Order

One measure involves examining the system of equations to discover whether it might be best to switch the order of the equations to make addition and multiplication activities easier. Here is an example involving the system of equations that resembles the one you explored in the previous section:

-4x + 2y = 0

x - 4y = -1

You can make it easier to work with this system of equations if you leave the coefficient ...

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