document.write( "Question 755387: solve the following system of equations algebraically
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document.write( "a. y=2x^2+20x+15 and y=7x
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document.write( "b. 16=x^2-y-4x and 2y=6x+4
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document.write( "c. y=5x^2+8x-2 and y=2x-3 \n" );
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Algebra.Com's Answer #459651 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! solve the following system of equations algebraically \n" ); document.write( "a. y=2x^2+20x+15 and y=7x \n" ); document.write( "Sub for y \n" ); document.write( "7x = 2x^2+20x+15 \n" ); document.write( "It's just a quadratic. solve for x \n" ); document.write( "================================== \n" ); document.write( "b. 16=x^2-y-4x \n" ); document.write( "2y=6x+4 --> y = 3x + 2 \n" ); document.write( "Sub for y as in a \n" ); document.write( "========================== \n" ); document.write( "c. y=5x^2+8x-2 and y=2x-3 \n" ); document.write( "Same again \n" ); document.write( " |