document.write( "Question 1084909: If 10 be addedto four time a certain number the result is 5 less than five times the number .find the number. \n" ); document.write( "
Algebra.Com's Answer #698945 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "Make the unknown number = x \n" ); document.write( "If 10 be added to four time a certain number \n" ); document.write( "10 + 4x \n" ); document.write( "the result is 5 less than five times the number \n" ); document.write( "5x - 5 \n" ); document.write( "........ \n" ); document.write( "10 + 4x = 5x - 5 \n" ); document.write( "Collect like terms \n" ); document.write( "4x - 5x = -5 -10 \n" ); document.write( "-x = -15 \n" ); document.write( "x = 15 \n" ); document.write( "Unknown number = 15 \n" ); document.write( "Proof: \n" ); document.write( "10 + 4x = 5x - 5 \n" ); document.write( "10 + 4(15) = 5(15) - 5 \n" ); document.write( "10 + 60 = 75 - 5 \n" ); document.write( "70 = 70 \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |