document.write( "Question 1111881: Solve the simultaneous equation:
\n" ); document.write( "\"2x%2By-1=0\"
\n" ); document.write( "2 to the power of x+y =32 (Doesn't format correctly) \n" ); document.write( "
Algebra.Com's Answer #726915 by math_helper(2461)\"\" \"About 
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Solve the simultaneous equations:
\n" ); document.write( "\"2x%2By-1=0\"
\n" ); document.write( "2 to the power of x+y =32 (Doesn't format correctly)
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\n" ); document.write( "\n" ); document.write( "\"+2x%2By-1+=+0+\" (1)
\n" ); document.write( "\"+2%5E%28x%2By%29+=+32+\" (2)\r
\n" ); document.write( "\n" ); document.write( "(2) implies \"+x%2By+=+5\" (2') because \"2%5E5+=+32+\"\r
\n" ); document.write( "\n" ); document.write( "(1) can be re-written \"+2x+%2B+y+=+1+\" (1')\r
\n" ); document.write( "\n" ); document.write( "Subtract (1') from (2') to eliminate y (there are other methods, this just looked easiest to me):\r
\n" ); document.write( "\n" ); document.write( " \"+x+%2B+y+=+5+\"
\n" ); document.write( "- \"+2x+%2B+y+=+1+\"
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\n" ); document.write( " -x = 4 \r
\n" ); document.write( "\n" ); document.write( "x = -4 —> y = 9\r
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\n" ); document.write( "\n" ); document.write( "Ans: \"highlight%28+x+=+-4%29+\" and \"+highlight%28y+=+9%29+\"\r
\n" ); document.write( "\n" ); document.write( "———————————\r
\n" ); document.write( "\n" ); document.write( "Check (using original equations):\r
\n" ); document.write( "\n" ); document.write( " 1. 2x + y - 1 = 2(-4)+9-1 = -8+9-1 = 0 (ok)
\n" ); document.write( " 2. \"+2%5E%28x%2By%29+=+2%5E%28-4%2B9%29+=+2%5E5+=+32+\" (ok)\r
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