document.write( "Question 53090: expressions/53089 (2006-09-21 00:55:06): I need to justify each of these step, please help me with this.
\n" ); document.write( "5(n+4)+9n= (5n+20)+9n
\n" ); document.write( "=5n+(20+9n)
\n" ); document.write( "=5n+(9n+20)
\n" ); document.write( "=(5n+9n)+20
\n" ); document.write( "=(5+9)n+20
\n" ); document.write( "=14n+20
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Algebra.Com's Answer #35389 by mathchemprofessor(65)\"\" \"About 
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5(n+4)+9n= (5n+20)+9n
\n" ); document.write( "You're asked to justify the left hand expression equals right hand expression, but not to simplify.
\n" ); document.write( "On simplification of each side, we get 14n+20
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