Posted by **yolanda** on Tuesday, July 1, 2008 at 9:19pm.

Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method? Which method do you like best? Why? What circumstances would cause you to use a different method?

- math -
**bobpursley**, Tuesday, July 1, 2008 at 10:01pm
Personally, I like gaussian reduction as a choice method, becausing my TI83 does it very quickly and accurately.

But for your methods, graphing on a graphing calc is fast. In school, often variables are assigned whole number values, which make elimination easy, but in real life (engineering), few answers are even rational numbers, much less whole numbers.

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