document.write( "Question 817238: x+y=201
\n" ); document.write( "x-y=11 solve using substitution
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Algebra.Com's Answer #491961 by lorst(1)\"\" \"About 
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x+y=201
\n" ); document.write( "x-y=11\r
\n" ); document.write( "\n" ); document.write( "let:x-y=11
\n" ); document.write( " x=11+y\r
\n" ); document.write( "\n" ); document.write( "solve for y:\r
\n" ); document.write( "\n" ); document.write( " x+y=201
\n" ); document.write( "11+y+y=201
\n" ); document.write( " 2y=201-11
\n" ); document.write( " 2y/2=190/2
\n" ); document.write( " y=95\r
\n" ); document.write( "\n" ); document.write( "solve for x:\r
\n" ); document.write( "\n" ); document.write( " x-y=11
\n" ); document.write( " x-95=11
\n" ); document.write( " x=11+95
\n" ); document.write( " x=106\r
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( " x+y=201
\n" ); document.write( "106+95=201
\n" ); document.write( " 201=201 check\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " x-y=11
\n" ); document.write( "106-95=11
\n" ); document.write( " 11=11 check
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