document.write( "Question 1203930: Use substitution to solve the system. \r
\n" ); document.write( "\n" ); document.write( "x-2y=11
\n" ); document.write( "2x+5y=-23\r
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\n" ); document.write( "y=
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Algebra.Com's Answer #839848 by josgarithmetic(39623)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "Use substitution to solve the system.
\n" ); document.write( "x-2y=11
\n" ); document.write( "2x+5y=-23
\n" ); document.write( "----------------------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"2%282y%2B11%29%2B5y=-23\"---------this is the most obvious substitution.
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