document.write( "Question 33916This question is from textbook
\n" ); document.write( ": Please help me to do this equation 15-4x=42-7x \n" ); document.write( "
Algebra.Com's Answer #20316 by fanism(39)\"\" \"About 
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15-4x=42-7x
\n" ); document.write( "-4x+7x = 42-15
\n" ); document.write( "3x = 27
\n" ); document.write( "x = 9
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