document.write( "Question 112905: \r
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document.write( "If three times a number added to 3 is divided by the number plus 11, the result is four thirds. Find the number?\r
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document.write( "HOw do I fo this and what is the answer? \n" );
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Algebra.Com's Answer #82238 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! LET X BE THE NUMBER. \n" ); document.write( "(3X+3)/(X+11)=4/3 \n" ); document.write( "NOW CROSS MULTIPLY \n" ); document.write( "3(3X+3)=4(X+11) \n" ); document.write( "9X+9=4X+44 \n" ); document.write( "9X-4X=44-9 \n" ); document.write( "5X=35 \n" ); document.write( "X=35/5 \n" ); document.write( "X=7 IS THE NUMBER. \n" ); document.write( "PROOF \n" ); document.write( "(3*7+3)/(7+11)=4/3 \n" ); document.write( "(21+3)/(18)=4/3 \n" ); document.write( "24/18=4/3 \n" ); document.write( "18*4=24*3 \n" ); document.write( "72=72\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |