document.write( "Question 679142: solve the following equation using substitution -3x+y=-2 -x+y=6 \n" ); document.write( "

Algebra.Com's Answer #421834 by MathLover1(20849) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"-3x%2By=-2\"$ .......1 \r
\n" ); document.write( "\n" ); document.write( " $\"-x%2By=6\"$ ..........2
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\n" ); document.write( "\n" ); document.write( " $\"-3x%2By=-2\"$ .......1 ...solve for $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=3x-2\"$ ........substitute in 2\r
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\n" ); document.write( "\n" ); document.write( " $\"-x%2B%283x-2%29=6\"$ ..........2...solve for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-x%2B3x-2=6\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"2x=6%2B2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"2x=8\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x=4%29\"$ \r
\n" ); document.write( "\n" ); document.write( "now find $\"y\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"y=3x-2\"$ ...plug in $\"x=4\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=3%2A4-2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=12-2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28y=10%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "let's see it on a graph:\r
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