document.write( "Question 324925: 7r - 8s =8
\n" ); document.write( "8r + 7s =106
\n" ); document.write( "The solution is what ordered pair? ( ?,?) \n" ); document.write( "

Algebra.Com's Answer #232698 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
1. $\"7r+-+8s+=8\"$
\n" ); document.write( "2. $\"8r+%2B+7s+=106\"$
\n" ); document.write( "From eq. 1,
\n" ); document.write( " $\"7r-8s=8\"$
\n" ); document.write( " $\"7r=8s%2B8\"$
\n" ); document.write( " $\"r=%288s%2B8%29%2F7\"$
\n" ); document.write( "Substitute into eq. 2,
\n" ); document.write( " $\"%288%288s%2B8%29%29%2F7%2B7s=106\"$
\n" ); document.write( " $\"8%288s%2B8%29%2B49s=742\"$
\n" ); document.write( " $\"64s%2B64%2B49s=742\"$
\n" ); document.write( " $\"113s=678\"$
\n" ); document.write( " $\"highlight%28s=6%29\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "Then from above,
\n" ); document.write( " $\"r=%288%286%29%2B8%29%2F7=56%2F7\"$
\n" ); document.write( " $\"highlight%28r=8%29\"$ \n" ); document.write( "

\n" );