document.write( "Question 480998: solve the following equations;
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document.write( "3x+2y+7=0
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document.write( "6x+4y-8=0,
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document.write( "a. algebraically
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document.write( "b. graphically \n" );
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Algebra.Com's Answer #329469 by mananth(16946) You can put this solution on YOUR website! 3 x + 2 y = -7 .............1 \n" ); document.write( "6 x + 4 y = 8 .............2 \n" ); document.write( "Eliminate y \n" ); document.write( "multiply (1)by -2 \n" ); document.write( "Multiply (2) by 1 \n" ); document.write( "-6 x -4 y = 14 \n" ); document.write( "6 x + 4 y = 8 \n" ); document.write( "Add the two equations \n" ); document.write( "0 x = 22 \n" ); document.write( "0=22 \n" ); document.write( "NO solution \r \n" ); document.write( "\n" ); document.write( "The lines are parallel\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "equation1 \n" ); document.write( "when x= 0 y= -3.5 ( 0 , -3.5 ) \n" ); document.write( "when y = 0 x= -2.33 ( -2.33 , 0 ) \n" ); document.write( "Equation 2 \n" ); document.write( "when x= 0 y= 2 ( 0 , 2 ) \n" ); document.write( "when y = 0 x= 1.33 ( 1.33 , 0 )\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |