document.write( "Question 997175: Twice the difference of a number and 7 equals 9 \n" ); document.write( "
Algebra.Com's Answer #615436 by Theo(13342)\"\" \"About 
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x represents the number.\r
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\n" ); document.write( "\n" ); document.write( "2 * (x - 7) = 9\r
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\n" ); document.write( "\n" ); document.write( "divide both sides by 2 to get x - 7 = 4.5\r
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\n" ); document.write( "\n" ); document.write( "add 7 to both sides to get x = 11.5\r
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\n" ); document.write( "\n" ); document.write( "to confirm, test our the original assmption.\r
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\n" ); document.write( "\n" ); document.write( "twice the difference of a number and 7 equals 9.\r
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\n" ); document.write( "\n" ); document.write( "the number is 11.5
\n" ); document.write( "11.5 - 7 = 4.5
\n" ); document.write( "two times 4.5 = 9.\r
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\n" ); document.write( "\n" ); document.write( "looks good.
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