document.write( "Question 82871: The difference of two numbers is 45. The second is 3 less than 3 times the first. What are the two numbers?? I really need someones help with this one. \n" ); document.write( "
Algebra.Com's Answer #59466 by afphrodietic(3)![]() ![]() ![]() You can put this solution on YOUR website! Let x = 1st number and y = 2nd number.\r \n" ); document.write( "\n" ); document.write( "x-y=45\r \n" ); document.write( "\n" ); document.write( "y=3x-3\r \n" ); document.write( "\n" ); document.write( "plug in the second equation to the first.\r \n" ); document.write( "\n" ); document.write( "therefore,\r \n" ); document.write( "\n" ); document.write( "x-(3x-3)=45 \n" ); document.write( "x-3x+3=45 \n" ); document.write( "-2x+3=45 \n" ); document.write( "3=45+2x \n" ); document.write( "3-45=2x \n" ); document.write( "-42/2=x \n" ); document.write( "-21=x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and\r \n" ); document.write( "\n" ); document.write( "-21-y=45 \n" ); document.write( "-21-45=y \n" ); document.write( "-66=y. \n" ); document.write( " |