document.write( "Question 985242: plz help! if the sum of a number and seven is tripled the results is two less than twice the number find the number \n" ); document.write( "
Algebra.Com's Answer #606093 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "first, the sum of a number \"x\" and \"7\" is:\"x%2B7\"\r
\n" ); document.write( "\n" ); document.write( "if the sum of a number \"x\" and \"7\" is tripled, we have: \"3%28x%2B7%29=3x%2B21\"\r
\n" ); document.write( "\n" ); document.write( "if the results is \"2\" less than \"twice\" the number, we have:\"3x%2B21=2x-2\"\r
\n" ); document.write( "\n" ); document.write( "solve for \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"3x%2B21=2x-2\"\r
\n" ); document.write( "\n" ); document.write( "\"3x-2x=-2-21\" \r
\n" ); document.write( "\n" ); document.write( "\"x=-23\"\r
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"3x%2B21=2x-2\"\r
\n" ); document.write( "\n" ); document.write( "\"3%28-23%29%2B21=2%28-23%29-2\"\r
\n" ); document.write( "\n" ); document.write( "\"-69%2B21=-46-2\"\r
\n" ); document.write( "\n" ); document.write( "\"-48=-48\"\r
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