document.write( "Question 769943: Riza is thingking of a number. she divided it by 15 thrice the difference of this number and 36 and arrives at 24. what is riza's number? \n" ); document.write( "
Algebra.Com's Answer #469130 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! A number = x \n" ); document.write( "Divided by 15. \n" ); document.write( "x/15 \n" ); document.write( "Thrice the difference of this number and 36 \n" ); document.write( "3*(36 - x/15) \n" ); document.write( "Arrives at 24 \n" ); document.write( "3(36 - x/15) = 24 \n" ); document.write( "Multiply out \n" ); document.write( "108 - x/5 = 24 \n" ); document.write( "- x/5 = 24 - 108 \n" ); document.write( "-x/5 = - 84 \n" ); document.write( "x/5 = 84 \n" ); document.write( " x = 84*5 \n" ); document.write( " x = 420. \n" ); document.write( "This is Riza's number \n" ); document.write( "Proof: \n" ); document.write( "420/15 = 28 \n" ); document.write( "3(36 - 28) = 24. \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |