document.write( "Question 1067276: Solve the systems of linear equations by graphing\r
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document.write( "y=2x+9
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document.write( "y=6-x\r
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document.write( "I am lost, how do I cancel one of the variables out with this format. PLease help me graph. \n" );
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Algebra.Com's Answer #682492 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve the systems of linear equations by graphing\r \n" ); document.write( "\n" ); document.write( "y=2x+9 \n" ); document.write( "y=6-x \n" ); document.write( "============= \n" ); document.write( "y = 2x + 9 \n" ); document.write( "They're straight lines. \n" ); document.write( "To graph them you need 2 points. \n" ); document.write( "Pick 2 values for x and find y \n" ); document.write( "eg, x = 0; y = 9 --> the point (0,9) \n" ); document.write( "x = -2, y = 5 --> the point (-2,5) \n" ); document.write( "Plot the 2 points, draw a line thru them. \n" ); document.write( "===================== \n" ); document.write( "Do y = 6-x the same way. \n" ); document.write( "--- \n" ); document.write( "The intersection of the 2 lines is the solution of the system. \n" ); document.write( " \n" ); document.write( " |