document.write( "Question 257555: simplify the following expression: 3(3z - 4) - (20 z - 5)
\n" ); document.write( " =9z-12 -20z+5
\n" ); document.write( "=(9z-20z) -12 +5
\n" ); document.write( "=-11z-7
\n" ); document.write( "

Algebra.Com's Answer #189451 by mymath(1)\"\" \"About 
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simplify the following expression: 3(3z - 4) - (20 z - 5)
\n" ); document.write( " =9z-12 -20z+5
\n" ); document.write( "=(9z-20z) -12 +5
\n" ); document.write( "=-11z-7
\n" ); document.write( "
\n" );