document.write( "Question 487039: solve the system:\r
\n" ); document.write( "\n" ); document.write( "3x - 11y = 9
\n" ); document.write( "-9x + 33y = 18 \n" ); document.write( "

Algebra.Com's Answer #332923 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
(1) $\"+3x+-+11y+=+9+\"$
\n" ); document.write( "(2) $\"-9x+%2B+33y+=+18+\"$
\n" ); document.write( "Multiply both sides of (1) by $\"+3+\"$
\n" ); document.write( "and add the equations
\n" ); document.write( "(1) $\"+9x+-+33y+=+27+\"$
\n" ); document.write( "(2) $\"-9x+%2B+33y+=+18+\"$
\n" ); document.write( " $\"+0+=+45+\"$
\n" ); document.write( "not true. There is no solution, so the
\n" ); document.write( "lines must be parallel
\n" ); document.write( "(1) $\"+33y+=+9x+-+27+\"$
\n" ); document.write( "(1) $\"+y+=+%289%2F33%29%2Ax+-+27%2F33+\"$
\n" ); document.write( "and
\n" ); document.write( "(2) $\"+33y+=+9x+%2B+18+\"$
\n" ); document.write( "(2) $\"+y+=+%289%2F33%29x+%2B+18%2F33+\"$
\n" ); document.write( "They have the same slope \n" ); document.write( "

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