document.write( "Question 629077: Solve the following systems of equations and find all possible solutions as (x,y).\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2By%5E2=25\"
\n" ); document.write( "\"x%5E2-y%5E2=7\"
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Algebra.Com's Answer #396014 by meetkisai(17)\"\" \"About 
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\"x%5E2%2By%5E2=25\" ----- A
\n" ); document.write( "\"x%5E2-y%5E2=7\" ------ B\r
\n" ); document.write( "\n" ); document.write( "using elimination method
\n" ); document.write( "=> \"+2x%5E2+=+25+%2B+7+\"
\n" ); document.write( "=> \"+x%5E2+=+32+%2F+2\"
\n" ); document.write( "=> x = (4, -4)
\n" ); document.write( "Let x = 4 => \"+4%5E2+-+y%5E2+=+7\" ---- B
\n" ); document.write( "=> y = (3, -3)
\n" ); document.write( "Hence (x, y) = {(4, -3), (-4, -3) (4, 3), (-4, 3)}
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