document.write( "Question 469862: 2x+y=1
\n" ); document.write( "x+y=3 \n" ); document.write( "

Algebra.Com's Answer #322307 by sofiyac(983) $\"\"$ $\"About$

You can put this solution on YOUR website!
2x+y=1
\n" ); document.write( "x+y=3 Multiply second equaiton by -2 and add it to the first one
\n" ); document.write( "2x+y=1
\n" ); document.write( "-2x-2y=-6 now add them
\n" ); document.write( "-y=-5 divide each side by -1
\n" ); document.write( "y=5 now plug that into either of the original equations and solve for x
\n" ); document.write( "x+5=3
\n" ); document.write( "x=-5+3
\n" ); document.write( "x=-2
\n" ); document.write( "so the solution is (-2,5), that's where both lines cross \n" ); document.write( "

\n" );