document.write( "Question 270822: I don't understand this question:
\n" ); document.write( "Simplify the expression.
\n" ); document.write( "4wxy - 8wxy
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Algebra.Com's Answer #198314 by JBarnum(2146)\"\" \"About 
You can put this solution on YOUR website!
\"4wxy-8wxy\"
\n" ); document.write( "say for instance wxy=z
\n" ); document.write( "then the equation looks like:
\n" ); document.write( "\"4z-8z\" and we know that 4-8=-4
\n" ); document.write( "so then it would be 4z-8z=-4z
\n" ); document.write( "and then go back to original problem its
\n" ); document.write( "\"highlight%284wxy-8wxy=-4wxy%29\"
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