document.write( "Question 486305: this is a substitute equation question.
\n" ); document.write( "x=-4y-2
\n" ); document.write( "3x-y=20
\n" ); document.write( "what is the solution? \n" ); document.write( "

Algebra.Com's Answer #332451 by Tatiana_Stebko(1539) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"system%28x=-4y-2%2C3x-y=20%29\"$
\n" ); document.write( "substitute $\"x=-4y-2\"$ into the second equation
\n" ); document.write( " $\"3%28-4y-2%29-y=20\"$
\n" ); document.write( " $\"-12y-6-y=20\"$
\n" ); document.write( " $\"-13y=20%2B6\"$
\n" ); document.write( " $\"-13y=26\"$
\n" ); document.write( " $\"y=26%2F%28-13%29\"$
\n" ); document.write( " $\"y=-2\"$
\n" ); document.write( "Substitute $\"y=-2\"$ into the first equation $\"x=-4%2A%28-2%29-2=6\"$
\n" ); document.write( "Answer (6,-2) \n" ); document.write( "

\n" );