document.write( "Question 352895: How do you determine to use subsitution or elimination? \n" ); document.write( "
Algebra.Com's Answer #252308 by nyc_function(2741)\"\" \"About 
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Usually the question itself will reveal which method to use when solving a system of linear equations in two variables. The same applies for a system of linear equations in 3 or 4 variables. The question will let you know. \n" ); document.write( "
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