document.write( "Question 336545: please solve {4x-4y=-16 {x-2y=-12 by using substitution. please express answer as an ordered pair
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Algebra.Com's Answer #241302 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"4x-4y=-16\"$
\n" ); document.write( "2. $\"x-2y=-12\"$
\n" ); document.write( "From eq. 2,
\n" ); document.write( " $\"x=2y-12\"$
\n" ); document.write( "Substitute into eq. 1,
\n" ); document.write( " $\"4%282y-12%29-4y=-16\"$
\n" ); document.write( " $\"8y-48-4y=-16\"$
\n" ); document.write( " $\"4y=32\"$
\n" ); document.write( " $\"highlight%28y=8%29\"$
\n" ); document.write( "Then from eq. 2,
\n" ); document.write( " $\"x=2%288%29-12\"$
\n" ); document.write( " $\"highlight%28x=4%29\"$ \n" ); document.write( "

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