document.write( "Question 999991: Hello, Iam trying to show
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Algebra.Com's Answer #853968 by ikleyn(53750)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "Hello, Iam trying to show
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\n" ); document.write( "4x+y=11
\n" ); document.write( "2x+5y=1
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\n" ); document.write( "\n" ); document.write( "        The solution in the post by @mananth is incorrect due to an arithmetic error.\r
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document.write( "From the first equation, express\r\n" );
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document.write( "    4x + y = 11,\r\n" );
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document.write( "express  y = 11 - 4x  and substitute it into the second equation\r\n" );
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document.write( "    2x + 5(11-4x) = 1.\r\n" );
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document.write( "This is an equation for single variable 'x'.  Simplify and find 'x'.\r\n" );
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document.write( "    2x + 55 - 20x =   1\r\n" );
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document.write( "        -18x      = -54\r\n" );
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document.write( "           x = -54/-18\r\n" );
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document.write( "           x = 3\r\n" );
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document.write( "plug  x= 3  in  y = 11 - 4x\r\n" );
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document.write( "                y = 11 - 4*3\r\n" );
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document.write( "                y = -1\r\n" );
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document.write( "ANSWER.  x = 3,  y = -1.\r\n" );
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document.write( "You may check that this answer is correct by substituting the values into original equations.\r\n" );
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