document.write( "Question 1077086: if 3 is added to a three quarter of a certain number the result is 30. find the original number
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Algebra.Com's Answer #691646 by amfagge92(93)![]() ![]() You can put this solution on YOUR website! LET THE NUMBER BE X \n" ); document.write( "3+3x/4=30 \n" ); document.write( "multiply bothsides by 4 \n" ); document.write( "12+12x=120 \n" ); document.write( "subtract 12 from bothsides \n" ); document.write( "12x=108 \n" ); document.write( "divde through by 12 \n" ); document.write( "X=9. \n" ); document.write( "check:3x/4+3=30 \n" ); document.write( "putting 9 for X \n" ); document.write( "3*9/4+3=30\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |