document.write( "Question 121346: - Determine how many solutions exist -
\n" ); document.write( "Use either elimination or substitution to find the solutions (if any)
\n" ); document.write( "- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection \r
\n" ); document.write( "\n" ); document.write( "y = 2x + 3 and y = -x - 4
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Algebra.Com's Answer #89112 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
y=2x+3 & y=-x-4
\n" ); document.write( "2x+3=-x-4
\n" ); document.write( "2x+x=-4-3
\n" ); document.write( "3x=-7
\n" ); document.write( "x=-7/3 answer.
\n" ); document.write( "y=2*-7/3+3
\n" ); document.write( "y=-14/3+3
\n" ); document.write( "y=(-14+9)/3
\n" ); document.write( "y=-5/3 answer.
\n" ); document.write( "proof
\n" ); document.write( "-5/3=-(-7/3)-4
\n" ); document.write( "-5/3=7/3-4
\n" ); document.write( "-5/3=(7-12)/3
\n" ); document.write( "-5/3=-5/3\r
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