document.write( "Question 1083435: Three times a number is five less than seven times that number, what is the number? \n" ); document.write( "
Algebra.Com's Answer #697422 by addingup(3677)![]() ![]() You can put this solution on YOUR website! 3x = 7x-5 add 5 on both sides \n" ); document.write( "3x+5 = 7x-5+5 \n" ); document.write( "3x+5 = 7x now subtract 3x from both sides, and you get: \n" ); document.write( "5 = 4x flip it to get the unknown on the left: \n" ); document.write( "4x = 5 \n" ); document.write( "x = 5/4 \n" ); document.write( "x = 1.25 \n" ); document.write( "--------------------- \n" ); document.write( "check: \n" ); document.write( "3(1.25) = 7(1.25)-5 \n" ); document.write( "3.75 = 3.75 correct \n" ); document.write( " |