document.write( "Question 943783: Solve the system of equations in Problem\r
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\n" ); document.write( "\n" ); document.write( "7m + 12n = -1
\n" ); document.write( "5m – 3n = 7\r
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Algebra.Com's Answer #575434 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( " $\"7m+%2B+12n+=+-1\"$
\n" ); document.write( " $\"5m+-3n+=+7\"$ ....all terms multiply by $\"4\"$
\n" ); document.write( "---------------------------\r
\n" ); document.write( "\n" ); document.write( " $\"7m+%2B+12n+=+-1\"$
\n" ); document.write( " $\"20m+-12n+=+28\"$
\n" ); document.write( "---------------------add\r
\n" ); document.write( "\n" ); document.write( " $\"7m+%2B+12n%2B20m+-12n+=+-1%2B28\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7m+%2B20m++=27\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"27m++=27\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28m++=1%29\"$ \r
\n" ); document.write( "\n" ); document.write( "go to $\"7m+%2B+12n+=+-1\"$ , substitute $\"m=+1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7%2A1+%2B+12n+=+-1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7+%2B+12n+=+-1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"12n+=+-1-7\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"12n+=+-8\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"n+=+-8%2F12\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28n+=+-2%2F3%29\"$ \r
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