document.write( "Question 295047: Having trouble with systems of equations using elimination. y=2x+3 and y=-x-4 \n" ); document.write( "
Algebra.Com's Answer #212690 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
They are both equal to y.
\n" ); document.write( "Set them equal to each other.
\n" ); document.write( "2x+3=-x-4
\n" ); document.write( "3x=-7
\n" ); document.write( "x=-7/3
\n" ); document.write( "y=7/3-4
\n" ); document.write( "y=7/3-12/3
\n" ); document.write( "y=-5/3
\n" ); document.write( "or we could
\n" ); document.write( "y=2x+3 and
\n" ); document.write( "y=-x-4
\n" ); document.write( "subtract the second from the first
\n" ); document.write( "0=3x+7
\n" ); document.write( "-7=3x
\n" ); document.write( "-7/3=x
\n" ); document.write( "That looks familiar.
\n" ); document.write( " \n" ); document.write( "
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