document.write( "Question 322281: Explain how we evaluate an algebraic expression for given values of the variables. How would we evaluate the expression \"3x - 4y + 9\" when x = 2 and y = 5?
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Algebra.Com's Answer #230705 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Just plug in the values and simplify.
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\n" ); document.write( "\"3x-4y%2B9=6-20%2B9\"
\n" ); document.write( "\"3x-4y%2B9=-5\"\r
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