document.write( "Question 330614: The sum of twice a number and -6 is nine more than that the opposite of the number. Find the number. \n" ); document.write( "
Algebra.Com's Answer #237079 by ankor@dixie-net.com(22740)\"\" \"About 
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Let x = \"a number\"
\n" ); document.write( "then
\n" ); document.write( "-x = \"opposite of the number\"
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\n" ); document.write( "The sum of twice a number and -6 is nine more than that the opposite of the number.
\n" ); document.write( "2x + (-6) = -x + 9
\n" ); document.write( "2x + x = 9 + 6
\n" ); document.write( "3x = 15
\n" ); document.write( "x = \"15%2F3\"
\n" ); document.write( "x = 5\r
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\n" ); document.write( "Check solution in original equation
\n" ); document.write( "2(5) - 6 = -5 + 9
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