document.write( "Question 208758This question is from textbook Introductory Algebra
\n" ); document.write( ": Please help me solve the system of equations by graphing:\r
\n" ); document.write( "\n" ); document.write( "x+y=4
\n" ); document.write( "x+y=-4\r
\n" ); document.write( "\n" ); document.write( "Thank you. \n" ); document.write( "

Algebra.Com's Answer #157867 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
Please help me solve the system of equations by graphing:
\n" ); document.write( "x+y=4
\n" ); document.write( "x+y=-4
\n" ); document.write( "-----------------
\n" ); document.write( "Rearrange:
\n" ); document.write( "y = -x+4
\n" ); document.write( "y = -x-4
\n" ); document.write( "----------------
\n" ); document.write( "Graph:
\n" ); document.write( " $\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C-x%2B4%2C-x-4%29\"$
\n" ); document.write( "---
\n" ); document.write( "The lines are parallel; there is no solution for the system of equations.
\n" ); document.write( "===========================================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

\n" );