document.write( "Question 346135: Solve by the elimination method.
\n" ); document.write( "2r-7s=-38
\n" ); document.write( "7r+2s=79 \n" ); document.write( "

Algebra.Com's Answer #247536 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"2r-7s=-38\"$
\n" ); document.write( "2. $\"7r%2B2s=79\"$
\n" ); document.write( "Multiply eq. 1 by 7 and eq. 2 by (-2) and add them together.
\n" ); document.write( " $\"14r-49s-14r-4s=-266-158\"$
\n" ); document.write( " $\"-53s=-424\"$
\n" ); document.write( " $\"highlight%28s=8%29\"$
\n" ); document.write( "Then from eq. 1,
\n" ); document.write( " $\"2r-56=-38\"$
\n" ); document.write( " $\"2r=18\"$
\n" ); document.write( " $\"highlight%28r=9%29\"$
\n" ); document.write( " \n" ); document.write( "

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