Homework Help: Algebra

Posted by Cassidy on Monday, January 28, 2013 at 3:38pm.

When is the substitution method a better method than graphing for solving a system of linear equations?

Algebra - Reiny, Monday, January 28, 2013 at 3:42pm
If one of the equation is in the form y = ....
or x = .... , or can easily be changed to one of those forms, I would use substitution

e.g

3x + 4y = 36
y = 2x+3

definitely use substitution

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