document.write( "Question 901242: If 3x+5x+9x+12x=319 ,then 6x+3 = \n" ); document.write( "
Algebra.Com's Answer #546610 by Purple mathematician (9)\"\" \"About 
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3x+5x+9x+12x=319
\n" ); document.write( "29x=319
\n" ); document.write( "x=11\r
\n" ); document.write( "\n" ); document.write( "So,
\n" ); document.write( "6x+3=0
\n" ); document.write( "6(11)+3=69
\n" ); document.write( "6x+3=69
\n" ); document.write( "
\n" );