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 #157868 by DRichardson(63)![]() ![]() 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 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now for x + y = -1\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \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! \n" ); document.write( " \n" ); document.write( " |