document.write( "Question 386323: what is the solution for the system of linear equations? and it has 2x-4y=12 and then it says 5x-y= -15. what does it want me to do? \n" ); document.write( "
Algebra.Com's Answer #273193 by mananth(16946)![]() ![]() You can put this solution on YOUR website! what is the solution for the system of linear equations? and it has 2x-4y=12 and then it says 5x-y= -15. what does it want me to do? \n" ); document.write( "................ \n" ); document.write( "you have to find the values of x & y \n" ); document.write( ".. \n" ); document.write( "2x-4y=12..............1 \n" ); document.write( "5x-y=-15..............2 \n" ); document.write( "... \n" ); document.write( "multiply (2) by -4 \n" ); document.write( "-20x+4y=60 \n" ); document.write( "add this to (1) \n" ); document.write( "2x-20x-4y+4y=12+60 \n" ); document.write( "-18x=72 \n" ); document.write( "/-18 \n" ); document.write( "x=72/-18 \n" ); document.write( " \n" ); document.write( "... \n" ); document.write( "plug x=-4 in (1) \n" ); document.write( "2*-4-4y=12 \n" ); document.write( "-8-4y=12 \n" ); document.write( "4y=-20 \n" ); document.write( "/4 \n" ); document.write( " \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |