document.write( "Question 1098621: how do I solve. x-y=4 & x^2-y^2=8\r
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Algebra.Com's Answer #712991 by Alan3354(69443)\"\" \"About 
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how do I solve. x-y=4 & x^2-y^2=8
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\n" ); document.write( "x-y=4
\n" ); document.write( "x^2-y^2=8
\n" ); document.write( "(x-y)*(x+y) = 8
\n" ); document.write( "4(x+y) = 8
\n" ); document.write( "x+y = 2
\n" ); document.write( "x-y = 4
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\n" ); document.write( "Can you do the rest?\r
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