document.write( "Question 430644: For large parties, many restaurants automatically add an 18% gratuity to the bill. If the total bill,
\n" ); document.write( " including gratuity is $163.43, what was the bill before adding the gratuity?
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Algebra.Com's Answer #299057 by jorel1380(3719)\"\" \"About 
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If the bill after gratuity is $163.43, and the restaurant added 18%, then:\r
\n" ); document.write( "\n" ); document.write( "1(X)+18%(X)=163.43
\n" ); document.write( "(100%+18%)(X)=163.43
\n" ); document.write( "1.18X=\"\"
\n" ); document.write( "X=163.43/1.18
\n" ); document.write( "X=138.5\r
\n" ); document.write( "\n" ); document.write( "The meal cost $138.50.
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