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.
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Algebra.Com's Answer #157868 by DRichardson(63)\"\" \"About 
You can put this solution on YOUR website!
Hello there,\r
\n" ); document.write( "\n" ); document.write( "This is a pretty simple equation:\r
\n" ); document.write( "\n" ); document.write( "Simplifying
\n" ); document.write( "x + y = 4\r
\n" ); document.write( "\n" ); document.write( "Solving
\n" ); document.write( "x + y = 4\r
\n" ); document.write( "\n" ); document.write( "Solving for variable 'x'.\r
\n" ); document.write( "\n" ); document.write( "Move all terms containing x to the left, all other terms to the right.\r
\n" ); document.write( "\n" ); document.write( "Add '-1y' to each side of the equation.
\n" ); document.write( "x + y + -1y = 4 + -1y\r
\n" ); document.write( "\n" ); document.write( "Combine like terms: y + -1y = 0
\n" ); document.write( "x + 0 = 4 + -1y
\n" ); document.write( "x = 4 + -1y\r
\n" ); document.write( "\n" ); document.write( "Simplifying
\n" ); document.write( "x = 4 + -1y\r
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\n" ); document.write( "\n" ); document.write( "Now for x + y = -1\r
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\n" ); document.write( "\n" ); document.write( "Simplifying
\n" ); document.write( "x + y = -4\r
\n" ); document.write( "\n" ); document.write( "Solving
\n" ); document.write( "x + y = -4\r
\n" ); document.write( "\n" ); document.write( "Solving for variable 'x'.\r
\n" ); document.write( "\n" ); document.write( "Move all terms containing x to the left, all other terms to the right.\r
\n" ); document.write( "\n" ); document.write( "Add '-1y' to each side of the equation.
\n" ); document.write( "x + y + -1y = -4 + -1y\r
\n" ); document.write( "\n" ); document.write( "Combine like terms: y + -1y = 0
\n" ); document.write( "x + 0 = -4 + -1y
\n" ); document.write( "x = -4 + -1y\r
\n" ); document.write( "\n" ); document.write( "Simplifying
\n" ); document.write( "x = -4 + -1y\r
\n" ); document.write( "\n" ); document.write( "Then you would graph these two answers and draw a line to each one. The point where the lines connect should be you answer.
\n" ); document.write( "I hope this helps! good luck on your lesson or homework!!!
\n" ); document.write( "Delilah R.\r
\n" ); document.write( "\n" ); document.write( "PS: Let me know how you do!
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