document.write( "Question 40133: Three times the mystery number was increased by 100, and the result was 12 less than the number. What is the mystery number? \n" ); document.write( "
Algebra.Com's Answer #25563 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
3X+100=X-12 OR 2X=-112 OR X=-56 PROOF\r
\n" ); document.write( "\n" ); document.write( "3*-56+100=-56-12 OR -168+100=-68 OR -68=-68
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