What are two symbolic techniques used to solve linear equations? Which do you feel is better? Explain why.
Elimination and substitution are two methods.
If you readily see how to do the elimination, it is quicker.
Substitution, however, [ is much more general and completely independent of immediate perception.
So each technique has its own peculiar merit. Consequently, I doubt that there a single criterion that permits ranking. Just my opinion. Others may disagree; see what they say. ]
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