document.write( "Question 888995: I am stuck on this equation -2x+y-3=0, 4x+y+3=0 . The answer is -1,1 but I do not see how they get it. \n" ); document.write( "
Algebra.Com's Answer #537810 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
first rearrange it
\n" ); document.write( "-2x+y=3,
\n" ); document.write( " 4x+y=-3\r
\n" ); document.write( "\n" ); document.write( "-2,1,3
\n" ); document.write( "4,1,-3\r
\n" ); document.write( "\n" ); document.write( "divide row 1 by -2/1
\n" ); document.write( "1,1/-2,3/-2
\n" ); document.write( "4,1,-3\r
\n" ); document.write( "\n" ); document.write( "add down (-4/1) *row 1 to row 2
\n" ); document.write( "1,1/-2,3/-2
\n" ); document.write( "0,3,3\r
\n" ); document.write( "\n" ); document.write( "divide row 2 by 3/1
\n" ); document.write( "1,1/-2,3/-2
\n" ); document.write( "0,1,1\r
\n" ); document.write( "\n" ); document.write( "We now have the value for the last variable.
\n" ); document.write( "We will work our way up and get the other solutions.\r
\n" ); document.write( "\n" ); document.write( "add up (-1/-2) *row 2 to row 1
\n" ); document.write( "1,0,-1
\n" ); document.write( "0,1,1\r
\n" ); document.write( "\n" ); document.write( "final
\n" ); document.write( "1,0,-1
\n" ); document.write( "0,1,1
\n" ); document.write( "x=-1
\n" ); document.write( "y=1\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );