document.write( "Question 551341: what is the solution of the following system of equations:
\n" ); document.write( "x^2-y=4
\n" ); document.write( "4x^2+y^2=12
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Algebra.Com's Answer #359651 by Alan3354(69443)\"\" \"About 
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x^2-y=4 --> x^2 = y+4
\n" ); document.write( "4x^2+y^2=12
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\n" ); document.write( "Sub for x^2 in eqn 2
\n" ); document.write( "4(y+4) + y^2 = 12
\n" ); document.write( "y^2 + 4y + 4 = 0
\n" ); document.write( "---
\n" ); document.write( "y = -2, -2
\n" ); document.write( "Sub for y, find x
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