document.write( "Question 276460: can someone please breakdown the process of elimination in algerbra???? here is an example the teacher gave me please help me break this down so I can understand how the teacher got this answer 5x+3y =_11 and 7x-2y=19 the teacher says that this is the answer ( 35/31 -172/31) how did he get this? \n" ); document.write( "
Algebra.Com's Answer #201517 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 5x+3y=-11 multiply by 2 \n" ); document.write( "7x-2y=19 multiply by 3 & add. \n" ); document.write( "10x+6y=-22 \n" ); document.write( "21x-6y=57 \n" ); document.write( "----------------- \n" ); document.write( "31x=35 \n" ); document.write( "x=35/31 ans. \n" ); document.write( "5*35/31+3y=-11 \n" ); document.write( "175/31+3y=-11 \n" ); document.write( "3y=-11-175/31 \n" ); document.write( "3y=(-11*31-175)/35 \n" ); document.write( "3y=(-341-175)/31 \n" ); document.write( "3y=-516/31 \n" ); document.write( "y=(-516/31)/3 \n" ); document.write( "y=-516/31*1/3 \n" ); document.write( "y=-516/93 \n" ); document.write( "y=-172/31 ans. \n" ); document.write( " \n" ); document.write( " |