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)\"\" \"About 
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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?
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\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( "\"%28highlight%28x=-4%29%29\"
\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( "\"%28highlight%28y=-5%29%29\"
\n" ); document.write( "...
\n" ); document.write( "m.ananth@hotmail.ca
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