document.write( "Question 417464: x-y=8
\n" ); document.write( "x+y=-2 \n" ); document.write( "

Algebra.Com's Answer #292246 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
(1) $\"x-y=8\"$
\n" ); document.write( "(2) $\"x%2By=-2\"$
\n" ); document.write( "Add the equations
\n" ); document.write( " $\"2x+=+6\"$
\n" ); document.write( "Divide both sides by $\"2\"$
\n" ); document.write( " $\"x+=+3\"$
\n" ); document.write( "Now plug this back into either (1) or (2)
\n" ); document.write( "(1) $\"3+-+y+=+8\"$
\n" ); document.write( "Subtract $\"3\"$ from both sides
\n" ); document.write( "(1) $\"-y+=+5\"$
\n" ); document.write( "Multiply both sides by $\"-1\"$
\n" ); document.write( " $\"y+=+-5\"$
\n" ); document.write( "The solution is (3,-5)
\n" ); document.write( "or, in other words:
\n" ); document.write( " $\"x+=+3\"$
\n" ); document.write( " $\"y+=+-5\"$
\n" ); document.write( " \n" ); document.write( "

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