document.write( "Question 808035: 7m+12n=-1
\n" ); document.write( "5m-3n=7 \n" ); document.write( "

Algebra.Com's Answer #486697 by mananth(16946) $\"\"$ $\"About$

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7 m + 12 n = -1 .............1
\n" ); document.write( "Total value
\n" ); document.write( "5 m -3 n = 7 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by 4
\n" ); document.write( "7 m 12 n = -1
\n" ); document.write( "20 m -12 n = 28
\n" ); document.write( "Add the two equations
\n" ); document.write( "27 m = 27
\n" ); document.write( "/ 27
\n" ); document.write( "m = 1
\n" ); document.write( "plug value of m in (1)
\n" ); document.write( "7 m + 12 n = -1
\n" ); document.write( "7 + 12 n = -1
\n" ); document.write( " 12 n = -1 -7
\n" ); document.write( " 12 n = -8
\n" ); document.write( " n = - 2/3
\n" ); document.write( " \n" ); document.write( "

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