document.write( "Question 446178: Solve by substitution method.
\n" ); document.write( "5m+n=23
\n" ); document.write( "m-9n=69
\n" ); document.write( "Solution type in ordered pair.
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5m+n=23
\n" ); document.write( "m-9n=69 \r
\n" ); document.write( "\n" ); document.write( "n=-5m+23
\n" ); document.write( "m-9n=69 \r
\n" ); document.write( "\n" ); document.write( "n=-5m+23
\n" ); document.write( "m-9(-5m+23)=69 \r
\n" ); document.write( "\n" ); document.write( "n=-5m+23
\n" ); document.write( "m+45m-207=69 \r
\n" ); document.write( "\n" ); document.write( "n=-5m+23
\n" ); document.write( "46m-207=69 \r
\n" ); document.write( "\n" ); document.write( "n=-5m+23
\n" ); document.write( "46m=207+69 \r
\n" ); document.write( "\n" ); document.write( "Add 69 to 207 to get 276. \r
\n" ); document.write( "\n" ); document.write( "n=-5m+23
\n" ); document.write( "46m=276 \r
\n" ); document.write( "\n" ); document.write( "n=-5m+23
\n" ); document.write( "
\n" ); document.write( "n=-5m+23
\n" ); document.write( "m=6 \r
\n" ); document.write( "\n" ); document.write( "n=-5(6)+23
\n" ); document.write( "m=6 \r
\n" ); document.write( "\n" ); document.write( "n=-30+23
\n" ); document.write( "m=6 \r
\n" ); document.write( "\n" ); document.write( "Add 23 to -30 to get -7. \r
\n" ); document.write( "\n" ); document.write( "n=-7 \r
\n" ); document.write( "\n" ); document.write( "m=6 \r
\n" ); document.write( "\n" ); document.write( "n=-7 \r
\n" ); document.write( "\n" ); document.write( "m=6
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