document.write( "Question 754247: thrice a number increase by 7 gives a result 12 \n" ); document.write( "
Algebra.Com's Answer #458922 by jim_thompson5910(35256)\"\" \"About 
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Hint:\r
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\n" ); document.write( "\n" ); document.write( "thrice a number increase by 7 gives a result 12\r
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\n" ); document.write( "\n" ); document.write( "translates to \r
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\n" ); document.write( "\n" ); document.write( "3x + 7 = 12\r
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\n" ); document.write( "\n" ); document.write( "where x is the unknown number
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