document.write( "Question 1091309: What is the substitution and elemination of y= -2x-6 and 4x+2y=8? And also a graph of the answer? \n" ); document.write( "
Algebra.Com's Answer #705685 by Alan3354(69443) You can put this solution on YOUR website! What is the substitution and elemination of y= -2x-6 and 4x+2y=8? And also a graph of the answer? \n" ); document.write( "--------------- \n" ); document.write( "If you mean, solve using substitution and elimination: \n" ); document.write( "--- \n" ); document.write( "y= -2x-6 \n" ); document.write( "4x+2y=8 \n" ); document.write( "Sub for y in the 2nd eqn \n" ); document.write( "4x+2y=8 \n" ); document.write( "2x + y = 4 \n" ); document.write( "2x + (-2x-6) = 4 \n" ); document.write( "-6 = 4 \n" ); document.write( "There's no solution. \n" ); document.write( "If you graph the 2 equations you get parallel lines. \n" ); document.write( "No intersection, no solution.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |