document.write( "Question 982693: l is the line x-2y+2=0.
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document.write( "m is the line 3x+y-8=0.
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document.write( "Use simultaneous equations to find the coordinates of P, the point of intersection of l and m. \n" );
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Algebra.Com's Answer #603497 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "x-2y+2=0. \n" ); document.write( "sort out to \n" ); document.write( "x - 2y = -2....(1) \n" ); document.write( "...... \n" ); document.write( "3x+y-8=0. \n" ); document.write( "sort out to \n" ); document.write( "3x + y = 8......(2) \n" ); document.write( "........ \n" ); document.write( "x - 2y = -2....(1) \n" ); document.write( "3x + y = 8......(2) \n" ); document.write( "Multiply (2) by 2 \n" ); document.write( "x - 2y = -2....(1) \n" ); document.write( "6x + 2y = 16....(2) \n" ); document.write( "Add (1) + (2) \n" ); document.write( "7x = 14 \n" ); document.write( "x = 2 \n" ); document.write( "Substitute x = 2 into Eq(1) \n" ); document.write( "x - 2y = -2 \n" ); document.write( "2 - 2y = -2 \n" ); document.write( "-2y = -2 - 2 \n" ); document.write( "-2y = -4 \n" ); document.write( "y = 2 \n" ); document.write( "Point of intersection of \n" ); document.write( "l and m is (2,2) \n" ); document.write( "Hope this helps:-) \n" ); document.write( " |