document.write( "Question 366884: solve by the substitution method.
\n" ); document.write( "9x+3y=-51
\n" ); document.write( "-8x+y=49 \n" ); document.write( "

Algebra.Com's Answer #261578 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"9x%2B3y=-51\"$
\n" ); document.write( "2. $\"-8x%2By=49\"$
\n" ); document.write( "Multiply eq. 2 by (-3) and add to eq. 1,
\n" ); document.write( " $\"9x%2B3y%2B24x-3y=-51-147\"$
\n" ); document.write( " $\"33x=-198\"$
\n" ); document.write( " $\"highlight%28x=-6%29\"$
\n" ); document.write( "Then from eq. 2,
\n" ); document.write( " $\"48%2By=49\"$
\n" ); document.write( " $\"highlight%28y=1%29\"$
\n" ); document.write( " \n" ); document.write( "

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