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When solving a system of equations, how do you determine which method to use?

Like how can you determine when to use Elimination, Substitution or Graphing???

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2 answers
  1. If you are explicitly told to use one method, then of course do that. Otherwise, just indicate what method you are intending to use, and then do it. You should know how to do all of the methods anyway. However, some of them are not as convenient as others. If you do not have technology handy, drawing graphs by hand is not pleasant, at least not for me. Sometimes, it is more user friendly to express y in terms of x or vice versa with substitution. I prefer elimination myself, unless the equations are funky.

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  2. good

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